Yes they are people constantly on the ISS station (international space station)
Ask Trump! He will tell you 'mexican illegal immigration' and so if he's president he will 'build a wall'
There is quite a bit of immigration from UK and European countries, as well as from Central America.
Answer:
B) China, India, and United States
Explanation:
China = 1,389,618,778
India = 1,311,559,204
United States = 331,883,986