Consider the Following Pricing Strategies

Multiple Choice

Consider the following pricing strategies:
A.perfect price discrimination
B.charging different prices to different groups of customers
C.optimal two-part tariff
D.single-price monopoly pricing
Which of the pricing strategies allows a producer to capture the entire consumer surplus that would have gone to consumers under perfect competitive pricing?

A) a, b, c, and d
B) a, b, and c only
C) a and b only
D) a and c only