Answer: While Potter lies outside his aunt and uncle's house, he "[sleeps] on, not knowing he [is] special" and praised all over the country (Rowling 21).
The most important elements in the passage are the fact that Harry is at his uncle and aunt's house, unaware of his wizard condition and his importance in the magic world. The sentence that best summarizes this is option C. Option A places Harry outside his house, which is factually wrong. Option B does not describe Harry's situation in the magic world. Finally, option D is not a summary, but an opinion.