单选题：There was a Greek shopkeeper in a small conner shop in Londo

There was a Greek shopkeeper in a small conner shop in London. She taught me about the 41of an act of kindness, which has motivated me to give.
On the day I went to that shop, I was42with a very high fever. I had been off work fordays and I had43out of food. Because I had been working so hard since I had 44 to town,I also had no friends who could help.
So I went out to get some food.45, I would have gone to the supermarket, butonthis 46, Iwent into the Greek shop because it was closer. I47a few things, from the looks of whichrevealed the48that I lived alone. Then I49them to the shopkeeper, who told me, "Youare unwell." I50rather shyly. She pointed at the things I was buying and51. "I can makeyou a sandwich, so you don't have to do it yourself.
So, she made the sandwich and asked me to52a moment. She went in the back room andreappeared with a container of hot soup. "It will53you up," she said with a smile.
What really warmed me up,54, was not the soup. It was her55that told me shecared. Her kindness made me feel cared for when I was particularly56.
And it57me. It made me want to be as58as the shopkeeper. I had been quite shy,but, from that day on, I did not let shyness prevent me from59random acts of kindness.
I was determined to60the joy ... and I haven't felt lonely since!
阅读以上短文，回答题。

第41题答案是__________ A．lesson
B．method
C．power
D．cause