where is the most likely place for a writer to add a plot twist that will surprise readers?

1. at the very end of the story, when readers think they know the conflict’s resolution.
2. in the beginning, right after the story’s conflict and characters are introduced.
3. as soon as the story’s rising action begins with characters attempting to solve the conflict.
4. in the middle, as the characters are close to resolving the conflict in the story.