A．Watching "warm" videos.
B．Watching control videos,
C．Watching "cold" videos.
D．All of the above.

A．To solve economic problems.
B．To increase gender equality.
C．To follow the international trend.
D．To increase the number of population.

A．Only mothers can take the paid parental leave.
B．No parental leave can be taken after the child is 8.
C．Only families of two working parents can enjoy the paid leave.
D．Parents must reserve the paid parental leave in advance.