user
2 dads and 2 sons go fishing, they each catch a fish but there were 3 fish caught. How is that?
A: have no children
B: dad
C: families
D: fathers
E: one was a grandfather
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

E

<|end_of_solution|>