GAUSS7 1998 Problem 23

A cube measures 10\:cm\times10\:cm\times10\:cm. Three cuts are made parallel to the faces of the cube as shown creating eight separate solids which are then separated. What is the increase in the total surface area?

Image

Answer Choices
A. 300\:cm^2
B. 800\:cm^2
C. 1200\:cm^2
D. 600\:cm^2
E. 0\:cm^2