I think is D but C is correct too!!
In "To Kill a Mockinbird," by Harper Lee, the narrator is Scout, a five yearl-old girl in rural Southern America. Through her eyes, readers can see a story of racism and prejudice with her innocent and thoughtful view, without any lies. Her father Atticus has raised her wisely to encourage her individuality, and is convinced that she is absolutely able to realize when somebody hides something. Her experiences facing good and evil situations eventually turn her into a mature young girl by the end of the story.
Young people usually express themselves in a vague and short way. Morever, young people make use of informal vocabulary when they speak; words like "eager", and expressions like "bursting with excitement" or "a long day of testing" are ways of speaking in a formal way that are not common among young people. Therefore, option C: <em>We ran ro the cars and jumped in because we hated school</em> might be used to depict the voice of a young character because it is shorter and informal.