That Indifference Curves Are Downward Sloping

Multiple Choice

That indifference curves are downward sloping

A) is not true.
B) follows from the fact that more is preferred to less.
C) follows from the property that the consumer likes diversity in his or her consumption bundle.
D) follows from the property that consumption and leisure are normal goods.
E) follows from the fact that there is a direct relationship between consumption and leisure bundles.