Which sentence correctly uses punctuation to separate coordinating adjectives?
O Sam auditioned for the musical even though he had a screechy, unpleasant voice.
O Sam auditioned for the musical even though he had a, screechy unpleasant, voice,
O Sam auditioned for the musical even though he had a screechy, unpleasant, voice,
O Sam auditioned for the musical even though he had a screechy unpleasant, voice.
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