A Sound Wave in Helium Has an Intensity Of $1.00 \times 10^{-3} \mathrm{~W} / \mathrm{m}^{2}$

A sound wave in helium has an intensity of $1.00 \times 10^{-3} \mathrm{~W} / \mathrm{m}^{2}$ . The density of helium is $0.179 \mathrm{~kg} / \mathrm{m}^{3}$ and the speed of sound in helium is $965 \mathrm{~m} / \mathrm{s}$ . The pressure amplitude of the sound wave is

A) $0.276 \mathrm{~N} / \mathrm{m}^{2}$
B) $0.476 \mathrm{~N} / \mathrm{m}^{2}$ .
C) $0.345 \mathrm{~N} / \mathrm{m}^{2}$
D) $0.682 \mathrm{~N} / \mathrm{m}^{2}$ .
E) $0.588 \mathrm{~N} / \mathrm{m}^{2}$ .