When I walk into a room, I want to be noticed. I want people to see me as an easy-going comedic guy. So I'd usually crack a joke to ease the tension. I want people to feel comfortable around me, which would then make me comfortable around them. Also, who doesn't like a Joker?
I would say the answer is D, as it means that if you loan something to someone with good intention they will use it gratefully and it will come back sharper than it was.
