Suppose the Country of Oz Has Only One Firm Producing

Suppose the country of Oz has only one firm producing bicycles. In this instance:

A) lowering trade restrictions can result in increased competition for the firm and, hence, lower prices.
B) consumers will pay a lower price for the product because it is produced under monopoly conditions.
C) government will be forced to break up the firm in order to eliminate the monopoly and encourage competition in the economy.
D) Both b and c