select the correct answer.\nwhat is the regular fluctuation of a tone between high and low pitch while…

select the correct answer.\nwhat is the regular fluctuation of a tone between high and low pitch while playing an instrument called?\na. vibrato\nb. articulation\nc. tuning\nd. pulse
Answer
Brief Explanations:
Vibrato is the regular fluctuation of a tone between high and low pitch. Articulation refers to how notes are attacked and released. Tuning is about setting the correct pitch of an instrument. Pulse is a steady beat.
Answer:
A. vibrato