6. PART B: Which paragraph shares the same purpose as the answer to Part A?
O A Paragraph 81
B Paragraph 86
C Paragraph 89
D Paragraph 92

This question is incomplete. Here's the complete question.

Read 'A Christmas Carol', By Charles Dickens (1843)

PART A: What is the purpose of this quote from paragraph 87?: “Quite satisfied, he closed  his door, and locked himself in; double-locked himself in, which was not his custom.”

A. To convey Scrooge’s sense of fear and dread

B. To reveal that Scrooge has strange habits due to his lack of knowledge of social  customs

C. To emphasize Scrooge’s desire to keep people out of his life

D. To foreshadow that Scrooge will be harassed in the night

6. PART B: Which paragraph shares the same purpose as the answer to Part A?

A. Paragraph 81

B. Paragraph 86

C. Paragraph 89

D. Paragraph 92

A. To convey Scrooge’s sense of fear and dread

A. Paragraph 81

Explanation:

Scrooge is a grumpy and greedy old man whose business partner, Jacob Marley, died seven years before. On Christmas eve, he saw the ghostly images of Jacob on the doorknocker of his front door, and that of a locomotive hearse climbing his house´s stairs.  

The fact that he double-locked himself in when that´s not his custom and him feeling "a terrible sensation" shows that he´s frightened by the experience.