A rectangular box is 4 inches long, 10 inches wide, and 15 inches high. If exactly 60 smaller identical rectangular boxes can be stored perfectly in this larger box, which of the following could be the dimensions, in inches, of these smaller boxes?
(A)2 by 5 by 6 (B)3 by 4 by 6 (C)3 by 5 by 6 (D)4 by 5 by 6 (E)5 by 6 by 12
A