What is the Quantity that maximizes profit?

Select one:

a. 0

b. 7

c. 2

d.

A B D Revenue and Cost for a perfectly competitive firm Q TR MR TC MC Profit 50 0 20 50 50 32 50 2 50 48 6 50 50 68 50 4 50 92 50 5 50 120 9 50 50 152 10 50 50 188 11 50 8 50 228 12 50 50 270 13 50 10 50 320 14 50 11 50 372 15 50 12 50 428 16 50 13 50 488 17