Reading Comprehension
从下列每篇短文的问题后所给的四个选择项中选出一个最佳答案。

     As a communications specialist, I teach my students to become more aware of interpersonal communication such as symbolic behavior, use of words, and nonverbal mannerisms. My goal is to place symbols in their minds so we can come to a point of agreement on language.
     I immensely enjoy the work because life is becoming more this way—persuade people to accept your point of view. We are both communicating and persuadable animals. It's not unethical and I train my students in an ethical manner.
     Many of my peers（同行）have left the academic world and taken up positions in business. They tend to become human resources officers. Happiness in job behavior is directly related to profits. If you get your employees to trust you, then you will increase your profits. This is why professionals in my field are so highly valued.
     Many famous psychologists reach over into communications and many study my field so they can learn more about interpersonal relationships. Whether it's John Miller at the office or Bill Clinton attending a political fundraiser, communications is important in everything we do.
     The majority of research is centered around conflict communication. There is definitely a strong desire to learn the proper steps to be taken to maintain a cool, rational process. I believe the increase in interest in communications can be traced to the Cuban missile crisis.
     Our research has made great strides in a relatively short period of time. We now know that it is sometimes truly more effective to have a spokesperson with a robotic, or monotonous tone. This type of spokespersons is often most effective in crisis situations because their relative lack of emotion can signal that heads are remaining cool and problems are being dealt with effectively. This was illustrated wonderfully by the U.S. military spokespeople during the first Persian Gulf War.
     While we have studied military communication, we have most of our work in the area of business communications. We now regularly consult companies on how to conduct job interviews. We have learned that most interviewers make up their minds about a job candidate within the first five minutes of the interview. We have also discovered why this is so and we will tell companies what is productive and counterproductive about these interviews, and hiring managers. We also conduct work on how to handle other business issues such as earnings releases and product recalls.