The main idea is about Dolphins. The 2 key details are how they take care of there babies and about their teeth.
The answer would be 'B' because personification is about an emotion from an figurative language. That's from my point of view, hope I had helped :)
Oooo! You put a lot of thought into it! I agree with you as well. As long as it’s for a good cause that an animal is getting tested on. That shouldn’t definitely get an A+. Have a blessed week! And thx for letting me read that essay!!