The external conflict must be B because she misses her family, that's more of a direct. And it can't be D since that can also count as an external (directly). Now it's between C and A. Which one of these are talking about a personal mental problem? A since she keeps thinking about it.
Answer is A.
Internal Conflict: "mental struggle arising from opposing demands or impulses."
Answer and Explanation:
The melodrama present in "A Christmas Carol" is the main element that makes this work fit into the Gothic genre. That's because Scrooge's story is full of melodramas, from his youth to his old age. In addition, "A Christmas Carol" presents a sinister, mysterious setting, with night scenes and supernatural beings, which are also common elements of the Gothic genre. We must not forget that this book presents concepts and ideas about death and spiritual life, which also allow it to be characterized as a Gothic book.