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! :)
Timothy (walks) to school everyday, and he lives four miles away.
spongebob was mad bc he thought it would ruin his relationship with patrick and patrick agreed and said "friends b4 marriage,
sorry if im wrong