【单选题】4. People interrupt for various reasons. One is believing that what they have to say is more important than what the other person is saying. Another reason people interrupt is that they believe they know what the other person is going to say and want the person to know that they already know. People may also interrupt when they are not paying close attention. The interruption communicates a lack of sensitivity, a superior attitude, or both. People need to be able to verbalize their ideas and feelings fully; inappropriate interruptions are bound to damage their self-concepts or make them hostile—and possibly both. Simply stated, whatever you have to say is seldom so important that it requires you to interrupt a person. When you do interrupt, you should realize that you may be perceived as putting a person down. The more frequent the interruptions, the greater the potential harm.2._____ The author suggests that people may interrupt because they 
选项：
don’t realize that the speaker is in the middle of a point.are nervous and want the speaker to like and respect them.are angry at the speaker.
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