Among the characteristics of effective communication, 'Shallow' does not belong, as it implies a lack of depth and substance that is contrary to the other traits like concise, coherence, and clear. Effective communication should always aim to be meaningful and informative. Thus, the correct answer is Shallow. ;
The correct answer is D. Shallow, as it does not align with the characteristics of effective communication. Effective communication should be concise, coherent, and clear, while shallow communication lacks depth and substance. Thus, shallow communication is not effective.
;