Compared with Charging a Single Price,all Else Equal,imperfect Price Discrimination

Compared with charging a single price,all else equal,imperfect price discrimination:

A) sometimes hurts customers with low ability to pay while benefiting wealthy customers.
B) always hurts all customers while increasing firm profits.
C) sometimes benefits customers with low ability to pay while reducing firm profits.
D) sometimes benefits customers with low ability to pay while increasing firm profits.