When inserting a urinary catheter, the nurse can facilitate the insertion by asking the client to （）.

A．initiate a stream of urine.

B．breathe deeply.

C．turn to the side.

D．hold the labia or shaft of penis.

Exchange of answer-backs acts a confirmation that the messages（）at the destination.

A.have received

B.have been received

C.are received

D.are being received