Perception is the abiltity to become aware of something through your senses. Vision is what allows you to see things.
I would say the tone of this sentence is formal.
Answer:
Hamlet doesn't kill Claudius at this point because he believes that Claudius is praying. He says that killing the king NOW would be "hire and salary, not revenge!" He simply cannot send Claudius to heaven, where he would surely go were he killed just after praying and purging his sins.
Explanation:
The option with the commas is the best written sentence
