In the open ocean, the distance between wave crests is 50 meters, and the wave oscillates up and down 0.16 times a second. This causes the wave to pass a given point every 6.25 seconds.

What is the speed of this wave?

A. 1.0 m/s
B. 8.0 m/s
C. 39.1 m/s
D. 312.5 m/s