Consider the Standing Wave on a Guitar String and the Sound

Multiple Choice

Consider the standing wave on a guitar string and the sound wave generated by the string as a result of this vibration.What do these two waves have in common? (There may be more than one correct choice. )

A) They have the same wavelength.
B) They have the same speed.
C) They have the same frequency.
D) They have the same amplitude.
E) They have the same period.