The images in the fifth paragraph (beginning "The lights glow brighter as the earth lurches") convey the impression that the night's activity is?

Paragraph 5: "The lights grow brighter as the earth lurches away from the sun and now the orchestra is playing yellow cocktail music and the opera of voices pitches a key higher. Laughter is easier, minute by minute, spilled with prodigality, tipped out at a cheerful word. The groups change more swiftly, swell with new arrivals, dissolve and form in the same breath--already there are wanderers, confident girls who weave here and there among the stouter and more stable, become for a sharp, joyous moment the center of a group and then excited with triumph glide on through the sea change of faces and voices and color under the constantly changing light."

The images in the fifth paragraph (beginning "The lights glow brighter as the earth lurches") convey the impression that the night's activity is?

A) alternately increasing and decreasing

B) remaining at a constant level

C) incongruous with the setting

D) increasing in intensity

E) disturbing to Nick