单项选择题
Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview.
Which of the following is NOT Professor McKay’ s view（）
A．People change in old age a lot more than at the age of 21.
B．There are as many sick people in old age as in middle age.
C．We should not expect more physical illness among old people.
D．We should not expect to find old people unattractive as a group.