Compared to the monopoly outcome with a single price, imperfect price discrimination .
(i) sometimes raises total surplus.
(ii) sometimes lowers total surplus.
(iii) always leads to a lower quantity of output.
(i) and (ii) only
(ii) and (iii) only
(i) and (iii) only
(i), (ii), and (iii)

(i) and (ii) only

Explanation:

Compared to the monopoly outcome with a single price, imperfect price discrimination

(i) sometimes raises total surplus.

(ii) sometimes lowers total surplus.

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