In order to highlight Oliver’s first encounter with the shockingly filthy London underworld, Dickens portrays London with a series of unpleasant natural elements including （）.

In order to highlight Oliver’s first encounter with the shockingly filthy London underworld, Dickens portrays London with a series of unpleasant natural elements including （）.
A.stones covered with thick mud
B.rain that falls sluggishly down
C.black mist
D.“everything felt cold and clammy to the touch”
正确答案：ABCD