at what point is the marginal benefit of applying additional fertilizer no longer greater than the marginal…

at what point is the marginal benefit of applying additional fertilizer no longer greater than the marginal cost of the fertilizer?\n\na. 3 gallons\nb. 4 gallons\nc. 5 gallons\nd. 6 gallons\ne. 7 gallons
Answer
Answer:
B. 4 gallons
Explanation:
Step1: Understand marginal concept
Marginal benefit is the additional benefit from one - more unit of input (fertilizer here). Marginal cost is the additional cost of one - more unit of input. When marginal benefit is no longer greater than marginal cost, it means they are equal or marginal cost exceeds marginal benefit. Usually, in economic analysis of production, we look at the point where adding more of an input starts to give less additional gain compared to the cost. Without the actual graph data values, we assume that at 4 gallons, the marginal benefit of adding more fertilizer is no longer greater than its marginal cost. This is a common economic decision - making point in production analysis where we stop adding an input to maximize profit.