Which question would most likely help you understand this excerpt from Adam Smith's book The Wealth of Nations?
Consumption is the sole end and purpIse of all production; and
the interest of the producer ought to be attended to, only so far
as it may be necessary for promoting that of the consumer.
-Adam Smith, Scottish economist, philosopher, and author?
A. Was Adam Smith a consumer or a producer?
B. Why did Adam Smith choose to be an economist?
C. Why does Adam Smith think consumption is the purpose of production?
D. What did Adam Smith think about scarcity?

Someone knows the answer i need in the exam

Define the marginal rate of substitution between two goods (x and y). if a consumer’s preferences are given by u(x, y) = x3/4y1/4, compute the consumer’s marginal rate of substitution as a function of x and y. calculate the mrs if the consumer has chosen to consumer 48 units of x and 16 units of y. show your work. (use the back of the page if necessary.

Afirm plans to begin production of a new small appliance. the manager must decide whether to purchase the motors for the appliance from a vendor at $10 each or to produce them in-house. either of two processes could be used for in-house production; process a would have an annual fixed cost of $200,000 and a variable cost of $7 per unit, and process b would have an annual fixed cost of $175,000 and a variable cost of $8 per unit. determine the range of annual volume for which each of the alternatives would be best. (round your first answer to the nearest whole number. include the indifference value itself in this answer.)