user
dad and the son were in separete cars and then crashed they were both sent to different hospitals and when they were going to operate the son the doctor said "i cant operate this guy he's my son. what happened?
A: mom was doctor
B: attache case
C: emergency room
D: examination
E: advice
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

A

<|end_of_solution|>