<span>The correct answer is the final sentence. The final sentence of this paragraph -- Ben sighed with satisfaction as he finally reached his trailer and opened the front door -- indicates that Ben likes living in Happy Trails Park. The other sentences illustrate that this is nice place to live: there are well-tended gardens, beautiful flowers, etc. However, only the final sentence proves that Ben is happy there, because we are told he "sighed with satisfaction" upon reaching his trailer.</span>
I'm going to guess Boo Radley.
If you ask me it starts the story going. it's like the main detail but I would have to see the whole story so it may not be right.