Which of the following would mostly likely cause the demand for salsa to increase?

A.
An increase in the price of tomatoes
B.
A decrease in consumer income
C.
A decrease in the price of chips
D.
An increase in the price of chips

C. A decrease in the price of chips. When the price of chips decreases, more people may be inclined to buy them and therefore buy salsa as well, leading to an increase in demand for salsa.