The answer is in the screenshot. I hope this helps :)
I would say number "A" is correct. If you read all of them out loud, pausing for each comma/semicolon, you might notice that "A" and "B" sound the most reasonable. It may depend, but I would go with number "A" because the semicolon makes a bit more sense than a comma. It can be tricky to identify the difference sometimes. I hope this helped :)
Answer:
Because they think that the hole is their home/nest.
Explanation:
