In modem society people are faced with fierce competition, and the pressure has become greater then ever before... (具有挑战性的工作职位: demanding position; 动机: motivation:挑战: challenge; 重要性: significance; 潜能: potential)

A．so
B．as
C．thus
D．such

A．social and economic factors result in less family time for adults
B．women do not quit their jobs and take care of their children as they used to do
C．there are so many disrupted families
D．media idols intentionally disrespect authority and wisdom