If Y = 002 Sin (30x - 400t)(SI Units),the Wavelength of the Wave

Multiple Choice

If y = 0.02 sin (30x - 400t) (SI units) ,the wavelength of the wave is

A) $\pi$ /15 m
B) 15/ $\pi$ m
C) 60 $\pi$ m
D) 4.2 m
E) 30 m