the answer is 48 cubic centimeters. If you come across another question like this one you could always use the rule; Volume= Base*Width*Height which is used in squares, and rectangles like this one
you do the formula lxwxh (length times width times height) you plug in the numbers so length 4, width 4, height 3. so 4 times 4 times 3 which gives you 48 cubic centimeters. so letter D:)
