Hey there!
The theme is a lesson that can be learned from the story.
The plot is all of the events that take place in the story. This can portray a character's actions, thoughts, and things they learn, so this can portray the theme.
The setting is the time or place in which the story is set. Knowing when a story takes place or where does not reveal any valuable lessons.
Characters are the ones who have thoughts, create actions, and are the stars of the story. They can teach us theme as we watch them go through experiences, challenges, and make mistakes. Therefore, they can portray theme.
Imagery can portray a mood or setting, but it cannot teach us a lesson. Therefore, it cannot show us theme.
Therefore, our answers are plot and characters.
I hope this helps!
