This work has given a close ______ into problems of pollution, congestion, intense company group pressure, sexism and racism.

A．you can see some excellent performances by athletes in the Olympics
B．it’s a way for many people to show their country is better than other countries
C．Olympics help to promote world peace
D．the Olympics is a great opportunity for athletes to demonstrate their speed, skill, agility and strength

A．A friend recommended a lawyer to them.
B．They will find a lawyer by themselves.
C．They will use an agency to find a lawyer.
D．They will send one of their HR people to hire a lawyer.