Which prism has the greatest volume?

A rectangular prism with a length of 6, width of 5, and height of 4.
B rectangular prism with a length of 3, width of 2, and height of 10.
C rectangular prism with a length of 8, width of 2, and height of 8.
D rectangular prism with a length of 3, width of 8, and height of 6.