Consider the Following Short-Run Cost Curves for a Profit-Maximizing Firm

Consider the following short-run cost curves for a profit-maximizing firm in a perfectly competitive industry. FIGURE 9-2
-Refer to Figure 9-2.The short-run supply curve for the industry in which this firm operates is

A) the MC curve at or above a price of $1.50.
B) the AVC curve at or above a price of $1.50.
C) the entire MC curve.
D) the MC curve at or above a price of $3.
E) not determinable from the information provided.