Which Statement Correctly Defines Grice's Maxim of Manner

Multiple Choice

Which statement correctly defines Grice's maxim of manner?

A) Communicators should provide enough information to advance a conversation, and avoid providing too much or too little information.
B) Communicators should say things that are truthful.
C) Communicators should make contributions that are pertinent to the conversation topic.
D) Communicators should avoid being vague, wordy and disorganized.