阅读理解
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项．
A
A German taxi-driver, Franz Bussman, recently found a brother who was thought to have been killed twenty years before．
While on a walking tour with his wife, he stopped to talk to a workman． After they had gone on, Mrs Bussman commented on the workman's close resemblance to her husband and even suggested that he might be his brother． Franz poured scorn on the idea, pointing out that his brother had been killed in action during the war． Though Mrs Bussman was fully acquainted with this story, she thought that there was a chance in a million
