The correct answer to this question is B
Curly was trying to be friendly to a husky dog, but the dog was vicious and began to attack her face, she was trying to protect herself, but then the pack of 30-40 dogs came and attacked her as well, killing her in the process.
In my opinion, the correct answer is B. His mystery feeds their imagination. The children have never even seen Boo, so they like to imagine and envision different spooky details about him. Jem fantasizes that he catches and eats squirrels and cats, which is why his hands are always bloody; he drools, his teeth are rotten, he has a dreadful scar on his face, etc.