The Inventor of a New Game Believes That the Variable $x$

The inventor of a new game believes that the variable cost of producing the game is $3.75 per unit and the fixed costs are $5000. The inventor sells each game for $8.99. Let $x$ be the number of games sold. Write the average cost per unit $\bar { C } = C / x$ as a function of $x$ where $C$ is defined as the total cost of producing $x$ games.

A) $\bar { C } = \frac { 5000 } { x } - 5.24 x$
B) $\bar { C } = 5000 + 3.75 x$
C) $\bar { C } = 5000 - 5.24 x$
D) $\bar { C } = \frac { 5000 } { x } + 3.75$
E) $\bar { C } = \frac { 5000 } { x } - 5.24$