题目内容：
阅读短文，回答问题：(一)
We often hear people talking about the generation gap. The name is new, but the idea is olD． Young people and their parents don't understand each other. The world keeps changing. It has al-ways kept changing. During the second century after Christ a wise man said, "Bury me on my face because in a while everything will be turned upside down."
There has always been a gap between generations, but more people talk about it now. Old Mr. Ellis thinks he understands what has happeneD．
"When I was a boy, I thought the world was a beautiful place. My life was very pleasant. But when I was older, I learned about people who were treated bad/y, people who did not have enough to eat. I wanted to help them, and I married a girl who wanted to help them, too. We went to meetings and talked a lot, but it didn't seem to make much difference."
"Our children grew up on a world at war. They didn't know when the fighting would stop.
They wanted their children to have nice clothes and toys. They didn't want to think about the fu-ture. They thought nothing could be done about it."
"Now I have grandchildren, and they have their own ideas. They are trying to make the world better. They are trying to help other people. They are making people listen to them. I am proud of their generation."
As Old Ellis understands it, the generation gap is probably A．the conflict between two generations
B．the misunderstanding between two generations
C．the different ideas and actions between people of different generations
D．a new term for an old idea
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