In the second sentence of the first paragraph, the pronoun "they" in "when they arrive" refers to ______.

A．People like to talk in grocery stores endlessly about their sisters and family matters.
B．The obnoxious users of cell phone in public places remind us of the smokers in grocery stores years ago.
C．Smokers were angry when laws were passed to forbid smoking in groceries, and they now talked loudly in the shops on cell phone to rebel and revenge.
D．People who now talk incessantly on cell phone in grocery stores are those who liked to smoke there befor

A．near the broccoli counter m the shop was the counter that sold cigarettes
B．while buying vegetables, one very often inhaled cigarette smoke in the shop
C．there were many people in the shop who were smoking Winston brand cigarettes
D．years ago, the majority of the shoppers smoked when buying things