Answer:
4. The health department reported that some people have gotten sick after swimming in the pool.
Explanation:
In his letter to the local city council, Anson voiced his concern over the safety of the pool and why it needs more time to be deemed safe to open. And according to him, if that 'missing' safety concern is taken care of, then the pool may be opened and safe.
Considering that he wrote <em>"Waiting until this safety problem is solved is the best thing you can do for the people of our community"</em>, I think the best statement that can be added is about the health issue with the pool. It is also the only reasonable statement to be added to the text.
Thus, the correct answer is option 4.
