Solve the Problem $x$ Items Is $$C(x)=5.68 x+21,000$$ What Is the Marginal Cost Per Item?
A)

Multiple Choice

Solve the problem.
-At a manufacturing plant, the total cost (in dollars) to produce $x$ items is $$C(x) =5.68 x+21,000$$
What is the marginal cost per item?

A) $\$ 5.68$
B) $\$ 20,994.32$
C) $\$ 21,000$
D) $\$ 21,005.68$