Three golf balls are stored in a square prism container with a height of 6 inches and a base edge of 2

inches. The diameter of a golf ball is 1.68 inches.

Find the amount of space within the square prism not taken up by the golf balls.

6 in

2 in

2 in

O 21.5 in

O 7.4 in

O 16.6 in

O 31.4 in