The answer is to discuss the speech he is making. Hope this helps.
He Green Knight<span> says that he will allow whomever </span>accepts<span> the </span>challenge<span> to strike him with his own axe, on the condition that the challenger find him in exactly one year to receive a blow in return. ... As soon as Arthur grips the </span>Green Knight's<span> axe, Sir</span>Gawain<span> leaps up and asks to </span>take<span> the </span>challenge<span> himself.</span>
C. because he states actions in heart and in hands
My answer is in comments because it would not let me press add answer. couldn't figure it out