Final answer:
Elizabeth Bennet rejects Mr. Darcy's proposal primarily because of his interference in her sister Jane's romantic affairs and his mistreatment of Mr. Wickham. Option B is the correct answer.
Step-by-step explanation:
The reasons Elizabeth Bennet gives Mr. Darcy for her rejection of his marriage proposal in Jane Austen's 'Pride and Prejudice' are rooted in her perceptions of his character and actions. T
he correct answer to the student's question is B: Elizabeth cannot forgive his interference in her sister Jane's relationship with Mr. Bingley, and she believes Darcy has mistreated Mr. Wickham. These grievances are compounded by her view that Darcy is high-handed and prideful, further influencing her refusal.
So Option B is the correct answer among the given option.