The Three Most Common Defenses Available to Suppliers Charged with Price

The three most common defenses available to suppliers charged with price discrimination are:

A) changing market conditions, meeting competition, and good faith actions.
B) ignorance of law, unprofitability of the supplier, and cost justification.
C) cost justification, changing market conditions, and meeting competition.
D) unprofitability of supplier, cost justification, and meeting competition.
E) changing market conditions, meeting competition, and ignorance of law.