To which of these does Hamlet admit in Act V?

that he knew the sword tip was poisoned

that he saw the ghost of his father

that he loved Ophelia

that he knew the wine was poisoned

C) That he loved Ophelia

Explanation:

He was told that the sword tip was poisned, thus he didn't know. The ghost was mentioned, but I'm not sure it was clear that it was of his father. He certainly did talk about his love for Ophelia. He said something about loving her more than 40 thousand brothers being able to. Although he declined the wine, we know that it wasn't necessairly made known to him when he asks for the treachery to be found out.