If Martina's Income Increases And,as a Result,she Chooses to Buy

Multiple Choice

If Martina's income increases and,as a result,she chooses to buy more lattés per month at each price,then her demand curve will

A) shift to the right.
B) shift to the left.
C) not shift;instead,Martina will move along her demand curve downward and to the right.
D) not shift;instead,Martina will move along her demand curve upward and to the left.