Suppose a hat manufacturer currently sells 2,000 hats per week and makes a profit of $5,000 per week. The plant owner observes, "Although the last 300 hats we produced and sold increased our revenue by $1,000 and our costs by $1,100, we are still making an overall profit of $5,000 per week so I think we're on the right track. We are producing the optimal number of hats."Using marginal analysis terminology, another economic term for the incremental revenue received from the sale of the last 300 hats isQuestion options:A. gross profit.B. gross earnings.C. marginal revenue.D. sales revenue.