An Important Legal Constraint on Pricing Is That

An important legal constraint on pricing is that

A) promotional pricing, such as cooperative advertising and price deals are illegal per se.
B) price fixing is not illegal per se, but sellers must make agreements with competitors or distributors concerning the final price of the goods.
C) price discrimination that lessens competition or is deemed injurious to it is outlawed.
D) deceptive pricing practices are allowed under Section 5 of the Federal Trade Commission Act.