The correct answer is option C. Both A and B
Putting each character into consideration.
Laurie as narrator:
Things we know:
Her own thoughts, feelings, and motivations.
That Charles is not real and her behavior is a fantasy.
The extent of her misbehavior and its effect.
Wouldn't know:
The full understanding of her mother's perspective and emotions and how her actions affect others.
Kindergarten teacher as narrator:
Things we know:
Laurie's outward behavior, including her misbehavior and interactions with others.
Laurie's emotional state and development in a school setting.
The challenges faced in managing Laurie's behavior.
Wouldn't know:
Laurie's thoughts and motivations behind her behavior.
The source of Laurie's internal struggles and her situation.
The existence of Charles or its meaning to Laurie.
Laurie's father:
Things we know (hint: only one):
His perspective and interactions with Laurie and Charles (if involved).
His feelings and concerns about the situation.
Wouldn't know:
Laurie's hidden world and motivations beyond what she chooses to share.
Whether Charles is real or a picture of Laurie's imagination.
The full extent of the emotional impact on Laurie and others.
Therefore, while Laurie's misbehavior might be hinted at through her actions, she possess the complete knowledge to reveal it.
Charles' true identity would remain unknown to all narrators except Laurie, as it's a product of her internal world.
So, the correct answer remains c. Both a and b.