I assume that by aggressive verb you mean a verb which shows the most emotion - because there is no such thing as an aggressive verb in grammar. Anyway, based on that understanding, I believe the correct answer is 1. batter. To batter means to hit hard over and over again, which to me shows a lot of aggression, which is why I'd choose that option. The other options do not show the same emotion.
Answer: I learned that Mrs. Putnam believes in witchcraft because seven of her babies died at only a day old. She believes it is caused by the supernatural.
