user
There were two mothers and two daughters,and they all went fishing. All of them caught a fish but when they counted there were only three fish. 
A: poison
B: trying to get rid of
C: egg
D: i dont knoyoutell me
E: own children
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>