7973. Please sound the Principal about the reaction of the students.

✅ The correct answer is option D.
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