When a pure monopolist price discriminates, which one of following happens?

When a pure monopolist price discriminates, which one of following happens?

Select one:

a. Producer’s surplus increases by a greater amount than consumer’s surplus deacreases.

b. Consumer’s surplus increases.

c. Producer’s surplus increases by a samller amount than consumer’s surplus decreases.

d. Producer’s surplus increases by the same amount as consumer’s surplus decreases.