Read the following paragraph from the story. "Last week, she had visited famous presidents' faces, carved into huge stone layers. Mount Rushmore was a place that had always interested her. How could they have done that? Who created them in the first place? And why?" What is the purpose of this paragraph?
A.It shows the reader what Maria's grandfather enjoys reading.
B.It explains how Maria will return to Mount Rushmore in the future.
C.It describes where Maria will begin looking for her next book.
D.It tells what Maria learned from the last book she borrowed.