What Happens When Indifference Curves Are Bowed in Toward the Origin

Multiple Choice

What happens when indifference curves are bowed in toward the origin

A) A consumer is less willing to trade away any goods when his income decreases.
B) A consumer is more willing to trade away goods when his income increases.
C) A consumer is less willing to trade away goods that he has in abundance than the goods of which he has little.
D) A consumer is more willing to trade away goods that he has in abundance than the goods of which he has little.