Assume That a Consumer Has a Given Budget or Income

Assume that a consumer has a given budget or income of $12 and that she can buy only two goods, apples or bananas. The price of an apple is $1.50 and the price of a banana is $0.75. What is the slope of the budget line if the quantity of apples were measured on the horizontal axis and bananas on the vertical axis?

A) -0.5
B) -0.8
C) -1.6
D) -2.0