Answer: A. The first section establishes pesticide toxicity; then, the second section analyzes problematic factors with its use.
Explanation:
EDGE2021
Combine sentences 2, 3, and 4 to create a series.
The question asks about revisions to create more sentence length variety. There are already many short sentences so we want to choose an answer that would create a long sentence. Combining sentences 2, 3, and 4 would reduce the number of short sentences and create one long sentence but keeping clarity.
