What happens when you pluck a guitar string?

Question

The string makes a column of air longer.

The string vibrates and makes a sound.

The string stops air molecules from vibrating.

The string echoes and makes a sound.

Answer 1

When you pluck a guitar string, the correct answer is:

The string vibrates and makes a sound.

Plucking the string causes it to vibrate, which in turn creates sound waves in the air. The vibration of the string produces different frequencies depending on the string's length, tension, and mass, which contributes to the pitch of the sound produced.