Mr. Smith moved to another town, and soon he needed a new doctor. He went to see one. He sat down in the waiting-room and looked around. The doctor degree was on the wall. Suddenly Mr. Smith remembered: there had been a classmate with the same name in his class at school, and he had become a doctor! When he went in to see the doctor, he remembered a young, handsome (英俊的) student, and was sorry to see how old and heavy this man looked. He said to him, "Good morning, doctor. Did you go to King High School" "Yes, I did." "Were you there from 1942 to 1946" Mr. Smith asked. "Yes, I was," the doctor answered. "How did you know" Mr. Smith laughed and said, "You were in my class!" "Oh!" the doctor said and looked at him carefully for a few second. "What were you teaching\ The doctor thought Mr. Smith was ______.
A. as old as he B. older than he C. a little younger than he