Answer:
C. Never before has there been a time so critical to our future. Never
The correct answer is:
B. Relocation to suburbs.
Relocation to suburbs has been a constant of urban life since the early 1900s.

Answer: surveyed and divided.
Explanation:
It would be "party leadership" that is the most common party system in the world today, although it should be noted that there are still many unitary and dictatorship-based governments.
Answer:
this is in your text book
Explanation: