Yes it was a daft question.
I only caught a bit though about what Chloe was saying about it being possible for twins to have different fathers and Marc and other housemates shaking their heads like she was an idiot, but that can actually happen so she wasn't wrong.
https://www.google.ie/url?sa=t&rct=j...96041959,d.ZGU
http://uk.businessinsider.com/twins-...rs-2015-5?r=US