When Indifference Curves Are Bowed in Toward the Origin

Multiple Choice

When indifference curves are bowed in toward the origin,

A) a consumer is less inclined to trade away goods they are lacking.
B) a consumer's willingness to trade away goods they have in abundance diminishes.
C) an increase in income will shift the indifference curve away from the origin.
D) a decrease in income will shift the indifference curve away from the origin.