Answer:
Answer is A
Explanation:
A.
Over 750 million people live in the member countries.
B.
People can move freely about member counties.
C.
It is the world’s second-largest economy.
D.
It has 27 member countries.
My suggestion: The only thing you can do is leave the cage in exactly the same place, leave the door to it wide open, and keep plenty of fresh food and fresh water in it. Check it several times a day. If he's not there in, like a week or 10 days, then there's not much hope. I'm sorry.