Padma Is on the Phone When Her Roommate Enters the Room.Padma

Padma is on the phone when her roommate enters the room.Padma signals to her roommate to be quiet by pointing to the phone,shaking her head,and placing a raised index finger in front of her mouth.This example illustrates the use of nonverbal communication to _______ verbal communication.

A) contradict
B) duplicate
C) expand
D) substitute for
E) augment