Solve the Problem $C(x)$ To Produce $x$ Units of Plywood Is Given By

Multiple Choice

Solve the problem.
-If the average cost per unit $C(x)$ to produce $x$ units of plywood is given by $C(x) =\frac{1200}{x+40}$ , what do 800 units cost? Round your answer to the nearest cent.

A) $\$ 320.00$
B) $\$ 24,000.00$
C) $\$ 1142.86$
D) $\$ 1199.95$