Answer:
D). Only address reasonable counterclaims.
Step-by-step explanation:
Addressing a counterclaim is necessary as ignoring may lead to disappointment and embarrassment among the readers due to conflicting opinions or perspectives. But again it is required to address only relevant claims.
The strategy that the speaker employs is that he/she only addresses reasonable counterclaims here while responding to the counterclaims as it would assist the speaker to focus his attention on the relevant counterclaims which would help him propose an effective essay, speech, or paper. Thus, option D is the correct answer.