Answer:
A. It granted sovereignty to each state.
Explanation:
An important difference between the freedom rides and unauthorized marches were Freedom rides were testing whether an existing law would be upheld, while unauthorized marches were intentionally breaking an unjust law. The correct answer is C.
I believe the term refers to architectural styles which draw inspiration and influence from forms seen in nature. Or, architecture that is built to blend seamlessly into natural settings like cliffsides or forested areas.