Who are the main characters in a story? people who create the story’s main problem
people who are mentioned once in the story
people trying to solve the story’s main problem
people who are expected to read the story

Yes it is people who are trying to solve the story's main problem because chances are, when solving a problem they will be mentioned more than once in the story. Main characters are the people who will be read or seen the most.

Iwould say possibly holding a chocolate bar a little heigher then them and when they go to reach for it, pull it upwards.if you have any more questions, let me know! was this question not what you were looking for? let me know! hope this