Got here from a different link? Check out Underwear Tonight first for tonight's Underwear Quiz Question, read on if you already knew the Underwear Quiz scenario question.
A. Good Choice! Basically by saying that's Hot, you're just trying to lighten an intense and stressful situation from him, he might give a laugh or two, which on moments like this is something that would really be helpful for him, this reduces stress and helps him focus on the current scenario. This will not create an awkward situation, the fact that he's ready to trust you with his boxful of underwear shows that he really see you as a friend that he can trust with anything. We always say in the site that an underwear represents intimacy. You've established a strong level of friendship with him, there's trust and respect.
B. This choice will create drama, this is a time of panic, his girlfriend is just steps away from the room you're sharing with him. You're in a boarding house, meaning your next door neighbor is just hearing distance away, and certainly that's not the place and time to argue or talk about his boxful of underwear, this is something that he regards as a private matter, something that he doesn't want his girlfriend to know. And it seems that he really trust you so much that he wants you to take care of his underwear secrets.
C. By admitting to his girlfriend that those boxful of underwear are yours, it will certainly raise lots of question, like why he's holding it, why its on a box, and lots of why's that his girlfriend can think of. It may also seem that you're just trying to cover for him, which gets him on a much deep water with his girlfriend.