user
A guy on a horse rode in to town on friday. He  stayed three day days and left the town on friday!How is this possible?
A: post horse
B: pack animal
C: horses name was friday
D: stepper
E: companionship
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

C

<|end_of_solution|>