They asked us to come off rudely , which was needless as we were hardly going to argue . Then a third woman arrived , though she was a real copper and treated us really respectfully and politely . She informed us that she 'd have to take our names because she had stopped us , just for formalities . So we did so , with a laugh and joke , before I said , ' So , common ? '

Based on the preceding passage, choose your answer for question What leads the speaker to refer to the third officer as a ' real copper ' ?
Possible answers:
(1). The speaker believes that real cops hold themselves to a certain standard of behavior;
(2). The first two cops were impostors and if the third had n't shown up there would have been trouble;
(3). The first two people that dealt with the speaker were firefighters , not police officers;
(4). None of the above choices .;
The answer is:
(1).