Answer:
A) Stay on track and keep the "paragraph train" moving forward
C) Provide more details about the topic sentence
Explanation:
It is in the supporting sentences (also known as the body of the paragraph) that the notion conveyed in the main phrase will be supported, explained, illustrated, or supported with evidence by the author. This is accomplished by keeping the details in the paragraph centered around the core topic of the paragraph.
As a result, how about staying on track and keeping the paragraph train going forward? The body of the response, or supporting paragraph, is a building block, and would be also correct.
