5) Jeffrey, Yugi and Jason are experimenting with waves. They use a 2-meter-long string and set a standing wave of frequency 5 Hz as shown in the picture. 2 m What is the speed of the wave propagating in the string? (A) 0.4 m/s (B) 2.5 m/s (C) 5 m/s (D) 10 m/s (E) 2.0 m/s