A competitive firm experiences a shift in costs of production that decreases marginal costs at all levels of output. What does this situation mean for the firm?

Use letter keys to select choices

A) The firm's demand curve will also shift to the left.

B) The firm's marginal cost curve will shift to the left.

C) Producing less at any market price will off-set marginal cost.

D) Expanding output levels at any given price will be profitable.