Refer to the Following

Multiple Choice

refer to the following:
The capital stock is fixed at 40 units, the price of capital is $15 per unit, and the price of labor is $80 per unit.

-If the firm produces 180 units of output, what is total variable cost?

A) $1,200
B) $1,800
C) $14,400
D) $17,100
E) none of the above