Answer:
B- the dogs have been infected and are now violent.
Explanation:
The narrator knew that leaving the dogs to continuously stay with him will be of no good to him.
The faulty logic that the given sentence contains is B. Either-or Fallacy. An either-or fallacy is the limiting of possible answers into two or it is oversimplifying. In the given sentence above, it only gives two possible answers: either meeting the deadline, or if not the town will suffer.
Need more info to answer this question not just the question itself.
Answer: "The (1846) crack" is what both sentences have in common, therefore we can combine them like this:
Since it could not be fixed, the Liberty Bell has had that crack in it ever since.