______ can be a "treat", according to the text.

A．Brazil seldom sends female swimmers or runners to the Olympics.
B．Cultural standards of attractiveness also affect athletic activities.
C．The effects of culture on standards of physical health and attractiveness.
D．The effects of culture on human biology.

A．Because successful women swimmers tend to be big, strong, hard and bulky, but Brazilian culture says that women should be soft.
B．Because Brazilian women don't like swimming and running.
C．Because Brazil's beauty standards accept less fat, expecially in female buttocks and hips.
D．Because Brazilian girls are encouraged to take part in public activities.