If you have to write about this (never read this) but you could be broad with what you say. Use things such as the timeline of the story, the actions the characters do and the emotions they feel. Of these things are possible in real life then of course it's realistic.
The word that serves as a clue of cause and effect is "Since".
I think the answer is A or D, im quite sure its not b or c. I'm sorry if this didn't help
→if this helped please mark brainliest i need to level up ←
To inspire an emotion or reaction