Generally Speaking, the Speed of Sound in Solids (V_s) Is $\approx$

Multiple Choice

Generally speaking, the speed of sound in solids (v_s) is related to the speed of sound in air (v_a) by the expression

A) v_s > v_a .
B) v_s $\approx$ v_a .
C) v_s < v_a .
D) none of the above.