user
The boy is a boy and the girl is a girl but the girl has no idea that she is a girl and the boy has no idea that he is a girl.  The boy has long hair and the girl has short hair and the girl takes her top off in front of everyone while the boy thinks that rude and disgusting.  Who's who. 
A: oil
B: dolichocephalic
C: their both babies
D: boy
E: catch
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>