What surprised Donald Herbert’s family and doctors one Saturday（）

A．The man regrets being absent-minded.
B．The woman saved the man some trouble.
C．The man placed the reading list on a desk.
D．The woman emptied the waste paper basket.

A．It was free of charge on weekends.
B．It had a 15% discount on weekdays.
C．It was offered to frequent guests only.
D．It was 10% cheaper than in other hotels.