Read the following passage and mark the letter A, B, C, or D to indica

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

Some policemen in New York City don't look like policemen. They are part of a special anti-crime squad. They help the regular police force in a clever way. The squad has 200 men, two make-up artists and a hairdresser. Seven days a week these policemen go out to work - but New Yorkers probably don't notice them in the streets. Every morning they leave the squad offices, after a few minutes with the hairdresser and make-up artists. They go into the streets as hippies, businessmen, blind men, postmen, women, and workmen. Without police uniforms they can move about the city and watch people very easily. They watch carefully, and talk to people — sometimes to criminals. Then they give information to the police. These people's job is very dangerous. Criminals are afraid of policemen with guns. But they are not afraid of k4an ordinary person”. So criminals often attack these special policemen. The anti-crime squad must have lessons to learn to protect themselves. The police department pays these men the same money as ordinary policemen.
 

When these special police walk in the streets, ___.

• A. A. they wear special clothes
• B. B. they are taken as ordinary people
• C. C. they often talk to criminals
• D. D. they are supposed to attack criminals