Select the Question That Can Best Be Answered Through Experimentation

Multiple Choice

Select the question that can best be answered through experimentation.

A) Do children from upper classes drink more carbonated beverages than those from lower classes?
B) Will Chevron gasoline with XYZ additive provide better mileage than Chevron without the additive?
C) Does the average male use cosmetics?
D) Is the standard of living higher today than ten years ago?
E) How often do Chevron's customers purchase gasoline?