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.
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.