No spam. Or any none English question.
Theme is a universal lesson learned and central idea is one sentence main idea.
Answer:
This essay is exceptional except for the fact that you gaze off in the essay. First you start of talking about your childhood. Then you go a completely different place. Other than that its great.
Explanation:
B seems to be the best option. Although D is also an interesting choice, I would go with B. "are a hazard for hatchlings" This does clarify the relationship between the claim that lights are hazardous for baby sea turtles and the reason that lights prevent them from coming ashore.
I hope this helps! :)