That's right, the correct answer is C.
The Sender-Message-Channel-Receiver (SMCR) model identifies individual components of a communication act, which in turn are affected by diverse factors that combined can result in a more or less efficient communication. The four components are sender, message, channel and receiver.
People from different cultures may understand the same message differently. Things can be accepted in one culture and considered very offensive in another. Therefore is important that communication is performed between a sender and a receiver who have the same cultural background or who have an understading on how to deal with the cultural background of the other interlocutor, in case it is not the own one.
