Who is responsibility for making sure that a message in the project team is understood

Who is responsibility for making sure that a message in the project team is understood

A.
Project manager

B.
Sender

C.
Project coordinator

D.
Sponsor

Explanation:
Sender has to make sure that the receiver acknowledges the receip and message is understood, and the receiver needs to ensure that the senser received the acknowledgement.

The sender-receiver model
The sender-receiver model is the simplest communication model and underpins most others. The sender has an idea or concept he/she wants the receiver to appreciate. Before any useful outcome can be achieved from the communication, the receiver has to accurately understand the senders idea! This means the message has to be effective in the receivers space; if the message does not engage the receiver, the sender is wasting his/her time

The elements in this model are:

Encode: To translate thoughts or ideas into a form of language that can be understood by the receiver; eg, written English, spoken French or a drawn diagram.
Message: What is sent: the output of encoding
Medium: The method used for sending the message (face-to-face, telephone, email)
Noise: Something that interferes with the sending or understanding of the message (distance, culture, language differences)
Decode: The translation of the message by the receiver from the medium into their thoughts.

A single communication is complete once the feedback-message has been decoded by the sender and checked for accuracy against the original idea. Once this loop has been closed both people have a common understanding of the idea. This does not require agreement or concurrence, but if there is to be a disagreement, it helps if everyone has the same basic understanding of the issue or idea in dispute. Effective communication requires both the sender and the receiver to be engaged. The sender needs to check that the message has been received and validate the feedback