But no matter how good a brain he has to begin with, an individual will have a low order of intelligence ______ (除非他有机会学习).

A．Because she wanted to find out what happened when the girl bought the necklace.
B．Bemuse she wanted to find out what kind of person the owner of the shop is.
C．Because she thought the necklace was not made of real turquoise.
D．Because she thought the necklace might be stolen from the shop.