阅读短文，根据短文内容，从题中所给的A、B、C、D四个选项中，选出最佳答案。
Bob Harris was a weatherman at a small TV station He worked for twenty years and in those twenty years, he thought that his life was boring. Every day, he studied the weather and tried to predict(预报) the next day's weather. Then, he stood in front of the camera and read his report. Some days it was cloudy, some days it was sunny; sometimes rainy, while sometimes snowy. The weather changed each day, but Bob still felt that his work was always the same. His boss(老板) often told him to smile(笑) more in front of the camera, but Bob seldom smiled. He thought that most people did not watch his weather report and his work did not matter much to anyone.
One day, he arrived at work and began to study the weather. He found that something was different that day. Everything he studied told him that there was going to be a very big storm(风暴) very soon, but he was not very sure. He ran to his boss office and asked to do a special weather report. The bossagreedand Bob gave a special report that afternoon, warning(警告) people of the coming storm. Because of this report, many people were safe in the storm.
Bob knew that his work was very important then.
