Sound Source of Power 100 Watts Radiates Sound Uniformly in All

sound source of power 100 watts radiates sound uniformly in all directions. The intensity of the sound at a distance of $4.00 \mathrm{~m}$ is

A) $0.497 \mathrm{~W} / \mathrm{m}^{2}$ .
B) $0.301 \mathrm{~W} / \mathrm{m}^{2}$ .
C) $0.535 \mathrm{~W} / \mathrm{m}^{2}$ .
D) $0.353 \mathrm{~W} / \mathrm{m}^{2}$ .
E) $0.621 \mathrm{~W} / \mathrm{m}^{2}$ .