Question

1. what distinguishes the timbre of an instrument?

a. the loudness of its sound
b. the duration of the sound
c. the harmonic content of the sound
d. the pitch it plays

Explanation:

Timbre refers to the quality or tone of a sound that distinguishes different types of sound production. The harmonic content (overtones) of a sound is what gives each instrument its unique timbre. Loudness relates to amplitude, duration is how long a sound lasts, and pitch is related to frequency.

Answer:

C. The harmonic content of the sound