2) What was Hitler's concept of
leadership?

Explanation:

Hitler was, first and foremost, determined to command personally. According to his so-called Leader Principle (Führerprinzip), ultimate authority rested with him and extended downward. At each level, the superior was to give the orders, the subordinates to follow them to the letter.

answer; i believe that the correct answer is (c) arctic tundra;

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to