Answer:
Hesitantly B. But if you have more questions on this story, perhaps one of them will make this one clearer.
Step-by-step explanation:
There are a lot of details given about the nature of the party. Are the Lins the people everyone is looking at? We have to assume so.
The answer is between B and A,
Do you think the activity is rather odd? Then you have to pick B. If you thing it odd that everyone is looking at them, then the answer is A. You can't pick C because we are not told anything about them except they are stairing at the Family. And you don't exactly know where this is taking place (unless another question tells you.)