Suppose That a Firm's Production Function Can Be Specified As Q

Multiple Choice

Suppose that a firm's production function can be specified as $Q = 10 K L$ Which of the following accurately describes this firm's long run total cost function?

A) $\frac { Q } { 10 K }$
B) $\frac { Q } { 10 L }$
C) $2 \sqrt { r w Q / 10 }$
D) $2 \sqrt { 10 Q / r w }$