In His Study of Police Officers, John McNamara Found That

In his study of police officers, John McNamara found that

A) patrol officers believe they receive substantial cooperation from the public.
B) patrol officers believe they receive no cooperation from the public.
C) when patrol officers first get on the job, they believe the public to be cooperative, but that belief decreases after two years.
D) when patrol officers first get on the job, they believe the public does not cooperate with the police, but that changes after two years.