Solve the Problem $C ( r ) = 0.16 \pi r ^ { 2 } + \frac { 140 } { r }$

Multiple Choice

Solve the problem.
-A can in the shape of a right circular cylinder is required to have a volume of 700 cubic centimeters. The top and bottom are made up of a material that costs 8¢ per square centimeter, while the sides are made of material that
Costs 5¢ per square centimeter. Which function below describes the total cost of the material as a function of the
Radius r of the cylinder? A) $C ( r ) = 0.16 \pi r ^ { 2 } + \frac { 140 } { r }$
B) $C ( r ) = 0.08 \pi r ^ { 2 } + \frac { 70 } { r }$
C) $C ( r ) = 0.16 \pi r ^ { 2 } + \frac { 70 } { r }$
D) $C ( r ) = 0.08 \pi r ^ { 2 } + \frac { 140 } { r }$