The Coefficient of Expansion of a Certain Steel Is 0 $\degree$

The coefficient of expansion of a certain steel is 0.000012 per C $\degree$ . The coefficient of volume expansion, in (C $\degree$ ) ^-1, is:

A) (0.000012) ³
B) (4 $\pi$ /3) (0.000012) ³
C) 3 * 0.000012
D) 0.000012
E) depends on the shape of the volume to which it will be applied