أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
(a) How well the receiver is doing(b) How well the sender is doing(c) Whether understanding has been achieved(d) What the sender should do the next time a message is sent(e) The ability of the receiver to perform the task.
(c)
R Feedback returns the message to the sender and provides a check on whether understanding has been achieved.
Hence, option (c) is correct.