The Following Costs Relate to Salad Box Company for a Relevant

The following costs relate to Salad Box Company for a relevant range of up to 10,000 units annually:
Salad Box sells each unit for $10.00.
Which of the following equations best describes the equation to determine total profit for a sales volume of 8,000 units?

A) Profit = $10.00X - ($30,000 + $4.00X)
B) Profit = $30,000 + $4.00X
C) Profit = $10.00X - ($10,000 - $4.00X)
D) Profit = $10X