Answer:
Alliteration.
Step-by-step explanation:
Alliteration is a literary device that refers to the use of the same consonant word in consecutive words in a sentence. In other words, we can say that alliteration is when the same consonant sound in close proximity in a sentence.
In the given sentence from "Wuthering Heights" by Emily Bronte, the author/ speaker uses the figurative language of alliteration. Alliteration is seen/used in the words "knocking my knuckles" and "fingers closed on the fingers . . ."
Thus, the correct answer is alliteration.