The correct answer is B: The murder of Polonius by Hamlet
This plot event accounts for the change in Laertes's character. At the beginning of the play, Laertes is a calm, gentle and docile person. However, after his father, Polonius, is murdered by Hamlet he returns to Denmark in order to avenge his father's murder. So, we can see that from Act I to Act IV Laertes's character changes dramatically as he becomes vengeful and he isn't a law-abiding citizen any more.
I think the casket is a symbol of death and it is also a symbol of cruelty of the narrator that he took Doodle to see it and touch it to emphasize that they thought he was going to die so needed to be brought face to face with it.
Answer a hhjdnndjdndmjdmc deck,dmdmd,dmdmdkd,dmd,kdkdk
The 3rd one. I hope this helps :)