A sound wave in air has an intensity of 100 x 10⁻³ Watts/m². The density of air is 129kg³ and the speed of sound in air is 331 ms. The pressure ampltude of the sound wave is:
A) 0.740 N/m²
B) 0.821 N/m²
C) 0.980 N/m²
D) 0.850 N/m²
E) 0.924 N/m²