Professor McKay is （） towards the tendency of more parents living apart from their children.

A．family love is gradually disappearing.
B．it is hard to comment on family feeling.
C．more children are indifferent to their parents.
D．family love remains as strong as ever.

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.