Assume the Quantity of Apples Is Measured on the Horizontal

Multiple Choice

Assume the quantity of apples is measured on the horizontal axis and the quantity of oranges is measured on the vertical axis. If Andy likes both apples and oranges, then his Marginal Rate of Substitution (i.e. the slope of an indifference curve) along the indifference curve indicates:

A) how many oranges he is willing to give up in order to obtain one more apple.
B) how many additional oranges he wants in order to give up two apples.
C) how many oranges he is willing to give up in order to get rid of one apple.
D) how many apples he is willing to give up in order to get rid of one orange.