The Short-Run Supply Curve for a Purely Competitive Industry Can

Multiple Choice

The short-run supply curve for a purely competitive industry can be found by

A) multiplying the AVC curve of the representative firm by the number of firms in the industry.
B) adding horizontally the AVC curves of all firms.
C) summing horizontally the segments of the MC curves lying above the AVC curve for all firms.
D) adding horizontally the immediate market period supply curves of each firm.