The article is a(n)______about ”This Is Your Brain on Music”.

A．Treasure hunters must report their finds to the police.
B．Treasure hunters must have permits.
C．A person who finds treasure must return it to its original owner.
D．Taxes must be paid on treasure finds.

A．They are too many and she can’t read them all.
B．They are too difficult and complex for her to understand.
C．She feels too tired to read any books.
D．They are too heavy for her to carry.