The excerpt below is from Adam Smith's The Wealth of Nations. Which of his economic philosophies can be seen in modern free enterprise systems?
It is natural that what is usually the produce of two days' or two hours' labor,
should be worth double of what is usually the produce of one day's or one
hour's labor. If the one species of labor should be more severe than the other,
some allowance will naturally be made for this superior hardship, and the
produce of one hour's labor in the one way may frequently exchange for that
of two hours' labor in the other. ... In exchanging the complete manufacture
either for money, for labor, or for other goods, over and above what may be
sufficient to pay the price of the materials, and the wages of the workmen,
something must be given for the profits of the undertaker of the work who
hazards his stock in this adventure. The value which the workmen add to the
materials, therefore, resolves itself in this ease into two parts, of which the
one pays their wages, the other the profits of their employer upon the whole
stock of materials and wages which he advanced. ...
1. Adam Smith, An Inquiry into the Nature and Causes of the Wealth of Nations (London
Methuen & Co Ltd1904), Book Chapter VII. Book V. Chapter X,
http://www. econlib. org/library/Smith/smWNCover html
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the beginning of the iditarod trail sled dog race. the iditarod trail sled dog race first ran to nome in 1973.   the trail they used is today known as the iditarod trail, first surveyed by the alaska road commission in 1908 and now one of the national historic trails as so designated by the congress of the united states.

what inspired

the children of nome were dying in january 1925. infected with diphtheria, they wheezed and gasped for air, and every day brought a new case of the lethal respiratory disease. nome’s lone physician, dr. curtis welch, feared an epidemic that could put the entire village of 1,400 at risk. he ordered a quarantine but knew that only an antitoxin serum could ward off the fast-spreading disease.the nearest batch of the life-saving medicine, however, rested more than 1,000 miles away in anchorage. nome’s ice-choked harbor made sea transport impossible, and open-cockpit airplanes could not fly in alaska’s subzero temperatures. with the nearest train station nearly 700 miles away in nenana, canine power offered nome its best hope for a speedy delivery.sled dogs regularly beat alaska’s snowy trails to deliver mail, and the territory’s governor, scott c. bone, recruited the best drivers and dog teams to stage a round-the-clock relay to transport the serum from nenana to nome. on the night of january 27, 1925, a train whistle pierced nenana’s stillness as it arrived with the precious cargo—a 20-pound package of serum wrapped in protective fur. musher “wild bill” shannon tied the parcel to his sled. as he gave the signal, the paws of shannon’s nine malamutes pounded the snow-packed trail on the first steps of a 674-mile “great race of mercy” through rugged wilderness, across frozen waterways and over treeless tundra.even by alaskan standards, this winter night packed extra bite, with temperatures plummeting to 60 degrees below zero fahrenheit. although every second was precious as the number of confirmed cases in nome mounted, shannon knew he needed to control his speed. if his dogs ran too fast and breathed too deeply in such frigid conditions, they could frost their lungs and die of exposure. although shannon ran next to the sled to raise his own body temperature, he still developed hypothermia and frostbite on the 52-mile leg to tolovana before handing off the serum to the second dog team.

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast

where are the options?

explanation: