one question , thanks

pain perception depends only partly on physiology. during world war 2 a significantly lower percentage of injured soldiers requsted morphine than did civilians recuperatin from surgery. the solider's response to inury was relief, joy at being alive, even euphoria; to the civilians, surgery was a depressing, calamitous event. so it would seem that the meaning one attaches to a wound can affect the amount of pain one perceives.

the claim that pain perception depends only partly on physiology figures in the argument in which one of teh following ways?

it undermines the argument's main conclusion.

it summarizes a position that the argument is meant to discredit

it is the main conclusin of argument.

I chose the third one, is that correct?

 thanks!!