If $\alpha$ Is the Coefficient of Linear Expansion of a Material at Material

Multiple Choice

If $\alpha$ is the coefficient of linear expansion of a material at 0ºC,the volume thermal-expansion coefficient of this material at 0ºC is

A) ~ $\alpha$
B) ~3 $\alpha$
C) ~ $\alpha$ ³
D) ~ $\alpha$ ^1/3
E) None of these is correct.