Figure 10-1 -Refer to Figure 10-1.When the Price of Hoagies Increases from Hoagies

Multiple Choice

Figure 10-1
-Refer to Figure 10-1.When the price of hoagies increases from $5.00 to $5.75,quantity demanded decreases from Q1 to Q0.This change in quantity demanded is due to

A) the price and output effects.
B) the income and substitution effects.
C) the fact that marginal willingness to pay falls.
D) the law of diminishing marginal utility.