Along a Linear Consumption Function

Multiple Choice

Along a linear consumption function,

A) the average propensity to consume falls with an increase in income.
B) the marginal propensity to consume rises with an increase in income.
C) the average propensity to consume rises with income, but the marginal propensity to consume falls with an increase in income.
D) both the average propensity to consume and the marginal propensity to consume rise with an increase in income.