Answer:
Whom stopped to pay attention to the street performer?
B. monopoly
Since that company bas almost all of the long phone service, it means that the company is a monopoly because it has exclusive control over phone service in general. There's little competition, so the company can do almost anything it wants to (even raise prices they charge their customers).
Simply just to tell them to stop or force them off it
They are called a literary letter or a epistle