Final answer:
All types of communication, verbal, non-verbal, and written, are used to convey messages effectively. They can complement and reinforce each other, providing a complete and nuanced transfer of information.
Step-by-step explanation:
The type of communication used to convey messages accurately and effectively is d. all types of communication. This includes verbal communication, which often requires specific terms or jargon, clear enunciation, and respectful language. Non-verbal communication, also known as body language, includes gestures, facial expressions, and other forms of body language that contribute to the message being conveyed. Lastly, written communication utilizes signs within a learned sign system, such as letters formed into words, to transmit information effectively.
Each of these forms of communication plays a critical role in ensuring that messages are understood as intended. It is often the combination of verbal, non-verbal, and written communication that makes for the most effective conveyance of messages, as they can complement and reinforce each other, providing clearer and more nuanced information.