A．It needs negotiation for better conditions.
B．It requires at least a three-year suspension.
C．It can become similar to human trafficking.
D．It needs ILO's approval on Convention 189.
A．His books have been sold worldwide.
B．He can speak and write eight languages.
C．His lifestyle is well-known in the world.
D．He has been to many countries before.
A．It appears in your physiology.
B．It is in your value system.
C．It is emphasized by philosophers.
D．It carries its own beliefs.