QUESTION $39$

Which of the following would be illegal under the Robinson$-$Patman Act?

a$.$

Ford and General Motors meet to fix the price of cars.

b$.$

ExxonMobil sells gas at a higher wholesale price to independent gas retailers than to ExxonMobil retailers.

c$.$

General Mills and Kelloggs decide to merge.

d$.$

ExxonMobil and BP Oil elect the same person to their boards of directors.