Which line from Robinson Crusoe best supports the theme of gratitude? A. I smiled to myself at the sight of this money. "O drug!" said I aloud, "what art thou good for? Thou art not worth to me" (50). B. So Xury and I went to work with him: but Xury was much the better workman at it, for I knew very ill how to do it (24). C. No joy at a thing of so mean a nature was ever equal to mine, when I had found that I had made an earthen pot that would bear the fire (109). D. [F]or never man had a more faithful, loving, sincere servant, than Friday was to me; without passions, sullenness, or designs, perfectly obliged and engaged (186).