Grey is the basic color tone that rules the whole novel. It symbolizes decadence, bleakness, corruption and disillusionment and represents moral decay, spiritual emptiness and death. The valley of ashes is a grey place where everything is colored grey.
Lauren walked slowly, but Caroline walked quickly.
"But" is the conjunction, and "slowly" and "quickly" are the adverbs.
The answer is correct. It’s the second one.
