user
There was a car crash.   In the car crash there was a boy and his father.   They were rushed to different hospitals in different ambulances.   When the boy arrived they had to do surgery on him.   The sergion says "i can not opperate on this boy, he is my son".   How can this be?
A: gender
B: sergion was boys mother
C: fathers
D: spouse
E: forefather
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

B

<|end_of_solution|>