Answer:
hamlet doesn't kill claudius because he is kneeling in prayer. hamlet believed that killing claudius while he prayed would gain his uncle immediate entrance into heaven. which he doesn't want to see claudius in heaven, he wants him to pay for the death of his father.
The most likely outcomes are one and two. Three is plausible, however it’s not likely that a single word would make the entire piece of writing sound as though it was written by an uneducated person.
Primary and secondary resources sounds like that might be the answer you’re looking for.