If a Consumer Consumes Two Goods,X and Y,and Has Indifference

Multiple Choice

If a consumer consumes two goods,X and Y,and has indifference curves that are bowed inward,the consumer's optional choice occurs when

A) he consumes that maximum affordable quantity of good X.
B) he consumes that maximum affordable quantity of good Y.
C) his indifference curve is tangent to his budget constraint.
D) his indifference curve lies entirely above his budget constraint.