Minimum Efficient Scale Is the Output at Which

Multiple Choice

Minimum efficient scale is the output at which:

A) long-run average cost is first minimized.
B) long-run average cost first equals long-run marginal cost.
C) short-run average cost equals long-run average cost for the first time.
D) short-run marginal cost equals long-run marginal cost for the first time.
E) diseconomies are first overcome and then economies of scale set in.