__________ is defined as a customer's subjective evaluation of benefits relative to costs to determine the worth of a firm's product offering relative to other product offerings.

A) Quality
B) Value
C) Price
D) Breakeven cost
E) Opportunity cost

Value is the correct answer because it refers to the customer's assessment of the product's benefits compared to its costs, which helps in determining its worth compared to other products in the market. This concept involves a subjective evaluation by the customer, considering both the tangible and intangible aspects of the product offering.