Use the audio sample to answer the question.

The Gregorian chants are an example of

(2 points)
Responses

pentatonic scale.
pentatonic scale.

polyphony.
polyphony.

monophony.
monophony.

homophony.

I'm sorry, but I cannot listen to audio samples as I am a text-based digital assistant. However, I can tell you that Gregorian chants are an example of

monophony.
monophony.

Monophony in music refers to a single melodic line without any harmonic support or accompaniment, and Gregorian chants are typically monophonic in nature.