A, jobs were good and most didn’t want to leave
I'm going for Musicians. Hope I got it right, and I hope this helps :P
Answer:
From 1950 to 2010, the world population increased from 2.5 billion to 6.9 billion, or by 174%. The average annual rate of growth—1.7%—was much higher than in the U.S. In the future, the global population is expected to increase from 6.9 billion in 2010 to 9.6 billion in 2050, or by 38
Because they wanted to expand there territories
The correct answer is D) Great Britain and Europe