Exhibit 8.9 -Refer to Exhibit 8.9,which Shows a Perfectly Competitive Firm's Short-Run

Exhibit 8.9

-Refer to Exhibit 8.9,which shows a perfectly competitive firm's short-run output decisions.The firm shuts down rather than produce at point _____

A) 1.
B) 3.
C) 5.
D) 2.
E) 4.