The Cost Function for a Certain Model of a Digital $C = 12.00 x + 48,450$

The cost function for a certain model of a digital camera given by $C = 12.00 x + 48,450$ , where $C$ is the cost (in dollars) and $x$ is the number of cameras produced. Find the average cost per unit when $x = 100$ . Round your answer to the nearest cent.

A) $\$ 49,650.00$
B) $\$ 484.50$
C) $\$ 12.00$
D) $\$ 496.50$
E) $\$ 484.62$