French.
People who live in France are know as French.
All three phrasings are correct, but they may have slight differences in use and connotation. "What do you call" is more common for asking about the name or title of something, while "How do you call" can be used in a similar way but might suggest a method or process of naming. Both can be suitable when asking about the name of people in France.
they live in France
to have fun
la France
France is like any other country. People live in cities and in the countryside.
Well, Alpes France is very unpopular- 0 people live there
In France, about three-fourths of people live in towns, the remaining fourth by villages in the countryside.
60 million people live in france
maison
Lao, though some in France call them Laocian = =
concrete blocs homes with ceramic tiles on roof