Roberta Spends All of Her Income on Two Items, Staplers

Multiple Choice

Roberta spends all of her income on two items, staplers and paper clips. If the price of a stapler increases, there will be a ________ Roberta's demand curve for staplers and a ________ Roberta's demand curve for paper clips.

A) rightward shift of; leftward shift of
B) leftward shift of; movement along
C) movement along; rightward shift of
D) movement along; leftward shift of