The best title for this passage could be ______.

A．she never understood why her parents had odd jobs and argued about the president
B．she didn't know what her parents did to earn money to support the family when she was young
C．she did understand why the American became more and more close and hugged a lot
D．she could see that the American parents keep the stress and tiredness from work to themselves

A．gathering the work and family duties together
B．matching the work quality to life quality
C．decreasing the defeating commitments
D．denying to fulfill their work and family obligations