题目内容：
根据以下内容回答题：Calvin Coolidge(1 872--1 933)was the thirtieth president of the United States．
He looked down on a Derson as being unworthy of respect who was too fond of talking about the details of other people’S actions and private lives——he had no time for small talk．The following two incidents clearly show how Coolidge treasured silence．
When he was vice-president，Coolidge had plenty of opportunity to participate in Washington，s social life，especially the many dinner parties．Because of his complete disregard for the art of conversation，he couldn’t exactly make himself dear to his hostesses．One lady felt she could SOlVe this problem．She placed him next to Alice Roosevelt Longworth，daughter of the former President Theodore Roosevelt．Mrs．Longworth，brilliant conversationalist，began to talk in her usual charming manner，but all attempts to awake interest on the part of vice-presi-dent were unproductive．Firrally．being shamed into annoyance，she said，“I am sure that going to as many dinners as you d0，you must get terribly bored．”Without lifting his eyes from his plate．Coolidge said not very．clearly，“Well，a man has to eat somewhere．”
Later，when he was president and once again at a dinner party，Coolidge was seated next to an outstanding society woman，one of those people who seem to take delight in trying to change the lives of everyone they meet．“0h，Mr．President，”she spoke with too much enthu-siasm“you are always so quiet，I made a bet today that l could get more than two words out of you．”In anger．the president made a low，rough sound and then said，“You lose．”
President Coolidge considered those people as being unworthy of respect__________ ． A．who talked much about himself
B．who never talked about anything serious
C．who told him a lie’
D．who enjoyed talking about the affairs of others
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