One of the challenges of watching a visual representation of a story could be knowing what the characters are thinking. In literature, authors often provide insight into characters' thoughts through narration or internal monologues. However, in a visual representation, it may be challenging to convey characters' inner thoughts and feelings without resorting to explicit dialogue or narration. This can leave the audience with limited knowledge and understanding of the characters' motivations and emotions.
So which one
The challenge in this scenario is knowing what the characters are thinking.