Dr. Kanner cured the girl by_______.

A．To explain why we feel discontented during holidays and immediately after holidays.
B．To show that holidays do harm to people' s health because we feel tired and uncomfortable.
C．To ask people to keep on working during holidays so that the body clock will not be disrupted.
D．To show the fact that people actually don' t enjoy their holidays.

A．People don't like to work.
B．They are too tired during the holidays.
C．A few days' holiday is not enough for people to have a good rest.
D．People' s body clock is disrupted during the holidays.