Q:Write a multi-choice question for the following article: Article: Walter owns three Italian restaurants which are running very well in Rhode Island in America. Every day his restaurants welcome crowds of customers all over the world. He studied to be a cook, but he sees now that his success is the result of a lifetime education. When he opened his first restaurant, all of a sudden his schooling knowledge , the history of his family and his ethics of his father _ . It made him a person who studied and explored the secrets in the food business. Walter's learning never stops. He says " The food business is one where you need to stay on top. Cooks should be trained. You have to keep on studying or you will be left behind." So he spent more time in reading. Every time he gets new ideas from the book, he brings them into his work. Walter also has a clear understanding about success. That is he would like to be remembered as a person who is creative, who believes in the Italian cooking culture in America. Food is like a bridge connecting to the past, to the family and to the country. He says "Success to me is not how much money I make, but if at the end of the day I am able to make fifteen or twenty customers happy, I'm a happy man."
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Question: From the last sentence of the passage, we can know that it is _ .Options:A happy to make a lot of moneyB exciting to have more and more customersC important to make the customers pleasedD impossible to make 15 or 20 customers happy every dayAnswer:C