The passage is mainly about the differences between conventional and organic farming.

A．let things go their own courses
B．admit that they are not superwomen
C．usually choose to give up their work
D．often blame themselves for it

A．That they can reconcile their careers with parental responsibilities.
B．That they can devote themselves to their career without regard for their children.
C．That they can resist the temptation of their ambition to make great achievements.
D．That they can resolve the conflicts between their careers and children without any sacrifice.