The Cobb-Douglas Production Function $q = k ^ { ~.5 } l ^ {~ .75 }$

Multiple Choice

The Cobb-Douglas production function $q = k ^ { ~.5 } l ^ {~ .75 }$ yields the cost function C = (where B is a constant) .

A) $B q v ^ { 1 / 2 } w ^ { 3 / 4 }$ .
B) $B q ^ { 5 / 4 }~ v ^ { 1 / 2 } ~w ^ { 3 / 4 }$ .
C) $B q ^ { 4 / 5 } ~~v ^ { I / 2 } ~~w ^ { 3/4 }$ .
D) $B q ^ { 4 / 5 } ~~v ^ { 2 / 5 } ~~w ^ { 3 / 5 }$ .