Refer to the given data. If the firm is hiring workers under purely competitive conditions at a wage rate of $22, it will employ:

At the current quantity of pizza, the marginal social benefit is greater than the marginal social cost. Then

A) the number of pizzas produced is efficient. B) more pizzas must be produced to reach the efficient level. C) fewer pizzas must be produced to reach the efficient level. D) revenue for pizza producers is maximized.

The above table shows the short-run total product schedule for the campus book store. When the fifth employee is hired, the marginal product is ________ and is ________ the average product

A) increasing; greater than B) increasing; less than C) decreasing; greater than D) decreasing; less than