What issues and challenges will the US face in the future?

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

Which of the following accurately compares the paths to independence of ghana and algeria? ! both nations achieved independence through armed struggle. both nations achieved independence peacefully. ghana achieved independence through armed struggle, while algeria achieved independence peacefully. ghana achieved independence peacefully, while algeria achieved independence through armed struggle.

How did the feudal rights of nobles limit government both in england and in germany?