Answer:
3
Explanation:
1. He gladly accepts his friend request in being a fog sitter for the while. But the title really exculdes this out of being an answer.
2. I don't think he actually wants to take over his froends buisness. Thats an overstatement for me.
3. The title has "confessions" . Maybe meaning he will go through a hard time babysitting as a dog-sitter. This can be the main idea of the story.
4. Norhing in the opening paragraphs said anyhting about him thinking dog sitting was fun or boring
Also the last line is kind of foreshadowing that maybe he will make mistakes will dpg-sitting. This ties back to answer 3.