An Average Consumer's Decision to Purchase a Good from a Firm

An average consumer's decision to purchase a good from a firm or hire resources directly in the market will:​

A) depend only on his production skill and not on his contract negotiation skill.
B) depend only on the opportunity cost of his time but not on his skill.
C) not depend on the cost of identifying, measuring, and pricing inputs.
D) not depend on the cost of negotiating contracts.
E) depend, in part, on both his skill and the opportunity cost of his time.