Because centimeters are 10 times larger than millimeters, the number representing the surface area of the cube would shrink by one decimal place (from 2.535 to 0.2535). However, the cube didn't actually get any bigger or smaller, only the units that we measured it with. Therefore, A and E are your correct answer choices, because the bigger the unit you're measuring with, the smaller the amount of those units something is, while at the same time, the object you are measuring never changes in real area.
Hope that helped! =)
