You are taking a vocational course in night school. The group you belong to is building a robot made of tin. Your task is to build the cylindrical body of the robot. The cylindrical body must have a height of 2 feet and a radius equal to of the body’s height.

Rounded to the nearest tenth of a cubic foot, what is the volume of the robot’s body?
A. 0.4
B. 1.6
C. 3.1
D. 6.3
E. 9.9