user
The man who needs me doesn't want me.  the man who makes me dosen't need me, and the man who has me dosen't know he has me. what am i
A: testosterone
B: manhole
C: makings
D: cofin
E: strike
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>