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

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

A．stands up well against
B．stands out good to
C．stands out well against
D．stands up good to