In Reference to Funding Industrywide Advertising, If the Majority of Managers

In reference to funding industrywide advertising, if the majority of managers free ride, which of the following is likely to occur?

A) The industrywide marginal benefit of advertising will fall below its marginal cost.
B) The industrywide marginal benefit of advertising will exceed its marginal cost.
C) The industrywide marginal benefit of advertising will equal its marginal cost.
D) The industry will maximize its joint profit.