Sabrina wants to test which brand of popcorn pops the most kernels. She picked a store brand, Orville Redenbacher, and PopSecret. All three bags started with the same number of kernels. She popped each for 3 minutes in the same microwave, and then counted the umber of kernels left over. What would the brand of popcorn be?

A
control group

B
data

C
dependent variable

D
independent variable