On a guitar, the longest string vibrates slowly, and the shortest string vibrates very quickly. What conclusion can be made about the sound that each string makes?
a
The long string makes a soft sound and the short string makes a loud sound, because things that are longer make softer sounds.
b
The long string makes a loud sound and the short string makes a soft sound, because things that are longer make louder sounds.
c
The long string makes a high-pitched sound and the short string makes a low-pitched sound, because things that vibrate slowly have a higher pitch.
d
The long string makes a low-pitched sound and the short string makes a high-pitched sound, because things that vibrate slowly have a lower pitch.