If the MRP of the 13th Worker Hired Is $40

If the MRP of the 13th worker hired is $40 and the MLC of that worker is $34, the firm

A) lost money by hiring that worker
B) cannot hire that worker unless more capital is added to production, in which case the firm will profit if the cost of the worker and capital is less than the revenue the worker generates
C) profited only if price of the good increased
D) must have lost money on the 12 workers it hired prior to hiring this 13th worker
E) profited by hiring that worker