The Answer is A because I just read the whole lesson.
They prepared a lightning war which is called Blitz Krieg. This was a plan on the situation since they have studied of the military actions as reactions of the countries that are helping each other, Germany, France and Poland. Germany had the military support of the USSR in agreement that Poland would be divided into two.
C to restore kuwaits independence
Might not be what you are looking for but many americans moved into the suburbs