I think it was created in a lab. The person who caught it first might have been afraid they would kill him or his family if they found out, this meaning he blamed it on a bat. It was accidentally spilt and was used as a weapon in case of emergency (war etc.) to help them out.
(D. flashback) my good sir i give u the answer
The answer is 3. personification and simile, because the author is giving Spring human-like qualities, and is comparing it with something else using the word "like", which is used in similes.
