Harold Owns a Cranberry Bog in Which He Grows Cranberries

Harold owns a cranberry bog in which he grows cranberries. Harold's farm is a competitive, profit-maximizing firm. As such, Harold much decide
(i) how many cranberries to sell.
(ii) what price to charge for his cranberries.
(iii) what wages to pay his workers.
(iv) how many workers to hire.

A) (i) only
B) (ii) and (iii) only
C) (i) and (iv) only
D) (i) , (ii) , (iii) , and (iv)