Answer:
The correct answer is option B. Minnie is not sure whether or not she wants to get married.
Step-by-step explanation:
We call internal conflict to someone's internal struggle, that is, it occurs in their mind.
In this case, the sentence presenting this problem is "Minnie is not sure whether or not she wants to get married."
Minnie is having this internal struggle in her head, without interacting with anyone else, only with herself.
It is not what happens in the other cases where:
A) It is a challenge between Jack and Zack.
C) A sports opposition between Debra and her opponent.
D) Liesel confronts her father.