(i will give you brainliest) knowing the current condition of the population in the united states, which of these would most likely have contributed to the growth of metropolitan areas in the country?
a) an increase in immigration from latin america
b) the creation of 'reservations' for native americans
c) the emancipation proclamation and the end of slavery
d) the development of more efficient modes of transportation

the greatest improvement in the productive powers of labour, and the greater part of the skill, dexterity and judgement with which it is any where directed, or applied, seem to have been the effects of the division of labour.
-adam smith, the wealth of nations, 1776
which sector of the economy most likely benefited from adam smith's ideas?
a) agriculture
b) finance
c) manufacturing
d) service