Select from each of these groups the good that is likely to have the highest price elasticity of demand:

Group A: Energy, oil, gasoline, Shell gasoline, Bill’s Shell Station gas.

Group B: The gasoline bought by those with long commutes to work;
the gasoline of those with short commutes.
Group C: Gas bought from Joe, who has no competitors; gas bought from Bill, who has many competitors.
Group D: Eyeglasses from Sid’s Glass Emporium in a state that does not permit advertising; eyeglasses from the same store in a state that does permit advertising.