Answer:
A. While pollution is a problem, sometimes it is unavoidable.
Explanation:
The narrator of the excerpt shown in the above paragraph does not disapprove of Greg's attitude in polluting the lake near his company, if it is necessary to keep his employees, who need the job to maintain the well-being of their families. Although the narrator claims that the lake's pollution will have dire consequences, he is in favor of Greg's decision to place employees above nature's well-being. In this case, we can see that the narrator sees the lake's pollution as something inevitable, that it is a problem, but that it needs to happen in certain situations.