It is essential that he ________ all the facts first.

A．London attracts shoppers from all over the world.
B．Most people in Nigeria live in poverty.
C．Wealthier Nigerians become a big spender.
D．People from the Middle East are the most wealthy.

A．Foreign investment in unstable regions.
B．BP’s presence in North Africa.
C．Security concerns in risky countries.
D．Protection for foreign oil workers.