According to the conversation when are all the big shops closed

A．10 or 15 years ago people seldom wrote
B．the English grammar and rhetoric can be taught on TV
C．thousands of teachers are reluctant to admit their students’ inability to write
D．TV ruins students’ ability to write

A．The investigation focuses more on character than on physical clues or on fooling the reader.
B．Police officers had been detectives in fiction.
C．An emphasis on police work and on criminal psychology.
D．The focus became the grim realities of police work — corruption, bribes, lying, and the necessity for informers.