What does the word "laid-off' in the passage mean

A．Because they didn' t get used to the new way of life.
B．Because they are too old to find a new job.
C．Because they dislike being laid off.
D．Because they think they lost their social status.

A．The rate of killing has been accelerating.
B．The US government forbids imports of both raw and finished ivory.
C．They realised that the killing of elephants is a serious threat to their tourist business.
D．African people advocated an ivory ban.