Respuesta :
Answer:
b. Written communication
Explanation:
Written communication -
It refers to the written or typed manner of sending messages via bulletins , telegrams , reports , circular , letters etc , is referred  to as written communication.
- This type of communication can have the record for future reference .
- It is a fast way of to transfer any data or information.
- The method is less flexible.
- The method can be used for any type of legal documentation.
- It is perfect for long distance communications.
- The communication can be done with many person at one time.
Hence , from the given information of the question,
The correct term is b. Written communication.
It is a formal method of communication and is less flexible. A written document preserved properly becomes a permanent record for future reference.