Strength is an important part of leadership because when leading you need to make an impreshion on people so they want to follow you. You want to be strong so you can make not only your self feel better about helping others but make other people feel good because your making an example for them.
Answer:
a) The cities were unprepared for so many new inhabitants.
Option C : Great Britain and Russia
Correct me if I'm wrong but I think the answer is:
"They were white musicians and composers who were heavily influenced by jazz."
Hope this helps and God bless you!