The De Broglie Wavelength of a 6

The de Broglie wavelength of a 6.0 gram bullet traveling at the speed of sound is __________. The speed of sound is 331 m/sec.

A) 2.7 × 10^-34 m
B) 3.3 × 10^-34 m
C) 3.35 × 10^-33 m
D) 2.7 × 10^-37 m
E) 6.6 × 10^-31 m