Recall the Application About the Best Speed at Which to Sail

Multiple Choice

Recall the Application about the best speed at which to sail an ocean cargo ship to answer the following question(s) .
-Based on the Application,a ship captain will decide to sail a ship slower if

A) the marginal benefit of a faster sail is less than the marginal cost.
B) the marginal benefit of a faster sail is more than the marginal cost.
C) the marginal benefit of a faster sail is equal than the marginal cost.
D) the marginal benefit of a faster sail is positive.