Alita wants to know if the color of ice cream affects its taste. She has three batches of vanilla ice cream. Batch 1 has no food coloring, Batch 2 has red food coloring, and Batch 3 has green food coloring, She asks 10 people to taste the three batches of ice cream and choose their favorite. What is the independent variable in Alita's investigation?
A. color of the ice cream
B. taste of the ice cream
C. number of batches of ice cream
D. number of people tasting the ice cream
