Use the passage to answer the question. Which detail from the passage supports the idea that social class impacts people’s sense of reality?

Long pauses came between each of these remarks; they were uttered in toneless and monotonous voices. The couple stood still on the edge of the flower bed, and together pressed the end of her parasol deep down into the soft earth. The action and the fact that his hand rested on the top of hers expressed their feelings in a strange way, as these short insignificant words also expressed something, words with short wings for their heavy body of meaning, inadequate to carry them far and thus alighting awkwardly upon the very common objects that surrounded them, and were to their inexperienced touch so massive; but who knows (so they thought as they pressed the parasol into the earth) what precipices aren't concealed in them, or what slopes of ice don't shine in the sun on the other side? Who knows? Who has ever seen this before? Even when she wondered what sort of tea they gave you at Kew, he felt that something loomed up behind her words, and stood vast and solid behind them; and the mist very slowly rose and uncovered—O, Heavens, what were those shapes?—little white tables, and waitresses who looked first at her and then at him; and there was a bill that he would pay with a real two shilling piece, and it was real, all real, he assured himself, fingering the coin in his pocket, real to everyone except to him and to her; even to him it began to seem real; and then—but it was too exciting to stand and think any longer, and he pulled the parasol out of the earth with a jerk and was impatient to find the place where one had tea with other people, like other people. "Come along, Trissie; it's time we had our tea." "Wherever does one have one's tea?" she asked with the oddest thrill of excitement in her voice, looking vaguely round and letting herself be drawn on down the grass path, trailing her parasol, turning her head this way and that way, forgetting her tea, wishing to go down there and then down there, remembering orchids and cranes among wild flowers, a Chinese pagoda and a crimson crested bird; but he bore her on.
A. . [T]here was a bill that he would pay with a real two shilling piece, and it was real, all real, he assured himself, fingering the coin in his pocket, real to everyone except to him and to her . . .
B. “. . . [H]e pulled the parasol out of the earth with a jerk and was impatient to find the place where one had tea with other people, like other people.”
C. “The action and the fact that his hand rested on the top of hers expressed their feelings in a strange way, as these short insignificant words also expressed something, words with short wings for their heavy body of meaning . . . .”
D. “. . . but who knows (so they thought as they pressed the parasol into the earth) what precipices aren't concealed in them, or what slopes of ice don't shine in the sun on the other side? Who knows? Who has ever seen this before?”

A. "[T]here was a bill that he would pay with a real two shilling piece, and it was real, all real, he assured himself, fingering the coin in his pocket, real to everyone except to him and to her . . ."

This detail supports the idea that social class impacts people's sense of reality because it shows that the man is hyper-aware of the social implications of his actions and the perception of others. He is concerned with the realness of the situation only in relation to himself and the woman he is with, indicating a self-consciousness stemming from his social class.