doesn't ,We use the first conditional to talk about things that will probably happen in the future
The answer is (B) because they are interested in the person speech so after he gets done they took a moment of silence and then started to cheer him on
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“The Green Knight's original challenge was for someone to step forward and strike him with his own axe under the condition that he meet him again one year later to receive a blow in return. Arthur steps up to the challenge, but in order to protect him, Sir Gawain steps up and meets the challenge instead”.
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