You are right you got the right answer
There are more than three reasons why this happened of course but the best three are there they needed more land, resources, and some way to escape the cold.
1 2 3 and 4 are all wrong but if one was right id say 3
NAzi Germany conquered most of Europe and North Africa
Answer: 20 hours on school weeks, 48 hours on non-school weeks, and 28 hours if you have Special Variance (special permission because you have good cause)