The Speed of Sound in Fresh Water at 293 K $\gamma$

Multiple Choice

The speed of sound in fresh water at 293 K is 1482 m/s. At what temperature is the speed of sound in helium gas the same as that of fresh water at 293 K? Helium is considered a monatomic ideal gas ( $\gamma$ = 1.67 and atomic mass = 4.003 u) .

A) 313 K
B) 377 K
C) 442 K
D) 525 K
E) 633 K