The facial expressions of students relate to which element of the communication process?

The facial expressions of students relate to the message element of the communication process.

As feedback flowing back to the teacher, they carry information and so form a message in themselves.

The receiver is the student as a person who takes in the teaching, not the expression itself.

The channel is the medium that carries signals, not the content shown on the face.

The sender is the originator of communication, a role separate from this expressive content.

Facial feedback is a non-verbal message returning to the source.