contestada

Which person is communicating verbally?

A.
Ava smiles when her mother allows her to go out with her friends for a movie.
B.
James shakes the hand of his colleague when they meet at work.
C.
Kevin keeps quiet when his teacher reprimands him.
D.
Olivia apologizes and explains her late arrival to the teacher.
E.
Marcus whistles when his friend arrives driving a new bike.