A．Because Americans are tired of their traditional food.
B．Because many international organizations are located there.
C．Because America is a country full of immigrants.
D．Because America often holds international food festivals.

A．Because she has more voluntary muscles than an average man.
B．Because 30 to 40 percent less muscle for her body mass than a man.
C．Because 60 to 70 percent less muscle for her body mass.
D．Because less muscle fiber for her body weight.