Choose the sentence from "five hours to simla" that best illustrates the mood of frustration.

a. "after the first cacophony of screeching brakes and grinding gears, there followed the comparatively static hum of engines, and drivers waited in exasperation for the next lurch forwards"
b. "clenching the wheel with both hands, his head was lowered on to it, and the blare of the horn seemed to issue out his fury."
c. "the children could not tear their eyes away from the beggar -his sores, his bandages, his crippled leg, the flies "