5 . A bat produces a sound at 17,250Hz and wavelength 0.019m. What is the speed of sound?
A. 1. 15 × 10¯^6 m/s
B. 3. 28 × 10² m/s
C. 8. 6 × 10^5 m/s
D. 1. 7× 10^6 m/s
