One particularly effective form of providing feedback is for the receiver to restate the message in his or her own words raise a hand to show that the message was received state "message received" out loud send a written message that states "message received"

restate the message in his or her own words

Explanation:

The three incorrect choices(raise a hand to show that the message was received, state "message received" out loud, send a written message that states "message received") all indicate only that the message was received and fail to show that the message was actually understood. Only by restating the message in his or her own words can the receiver clearly indicate that the message was fully understood, so "restate the message" is the correct response.

answertrue;

answer(true);