When a Consumer Is Impatient,his Indifference Curves for Current and Future

Multiple Choice

When a consumer is impatient,his indifference curves for current and future consumption

A) are flatter than the budget line at the endowment point.
B) must be straight lines.
C) have absolute slopes less than 1 along the 45° line.
D) have absolute slopes greater than 1 along the 45° line.