A lady builds 9cm length, 12cm width, and 3cm height box using 3cubic cm cubes. What is the minimum number of cubes required to build the box?	Choose one.
A) 107 B) 108 C) 109 D) 110 E) 111

Rationale: "number of cubes required = volume of box / volume of cube = 9 * 12 * 3 / 3 = 108 cubes answer : b"
Answer: B