Please sound the Principal about the reaction of the students.

A. support

B. discuss

C. tell

D. caution

Answer: Option D

Solution(By Examveda Team)

Support : bear all or part of the weight of; hold up.
Discuss : talk about (something) with a person or people.
Tell : communicate information to someone in spoken or written words.
Caution : say something as a warning.
Sound : give an audible signal to indicate (something).

Synonym of Sound is Caution