阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A
A brief act of kindness brings an unexpected insight (领悟).
I was shopping at a department store and had just boarded the clown escalator (电动扶梯) when I noticed a woman standing to the side. She looked about 65, and her expression told me she was scared. I turned toward her and asked, “Do you need help?"
As the escalator continued moving, I heard the woman reply softly, “I’m afraid." There was a hint of doubt in her voice. "Want me to come back and get you?" I called to her. She nodded. But by the time I reached her, the woman had reconsidered. "I don't think I can do it", she said.
I was suddenly aware that I had made a far greater investment than I expected. "I know we can do it," I said. "I can hold on to you." She looked down at the beast (庞然大物). Then her eyes came back to mine, looking
