In the long-run, a firm must shut down if its average revenue is

A.

Greater than average cost

B.

Less than average variable cost

C.

Equal to the minimum average revenue

D.

Equal to the average cost

Correct answer is B

In the long-run, a firm shut down if its average revenue ( price) is less than average variable cost. A firm shut down, when it is unable to cover its average variable cost or average cost or Average fixed cost is zero(0).