Women took part in men's jobs during the time of _________.

A．Different life styles led by the American women.
B．American women were free to step into nontraditional roles.
C．American women worked hard to establish their roles in American history.
D．American women were independent because they did not have to follow the regulations at all

A．Two contrasting views of a problem are presented.
B．An evaluation is explained and then reasons are given.
C．A problem is examined and possible answers are given.
D．Historical view is explained in comparison with the present.