Which of the following belongs to non-fiction

A．She emphasized the importance of imagination for children.
B．She wants to prove that reading Encyclopedia is important for children.
C．She wants to tell people how to stimulate children' s motivation.
D．She proves that non-fiction can also fire the imagination of children.

A．education is beneficial to mental development
B．education protects the brain from shrinking
C．education has a protective effect against mental decline
D．education affects overall brain structures