Hope this helps! Good luck :)
Answer:
The answer would be C because bill of rights as to do with the rights of the original citizens and C is the closest to that
Legislature is the introduction of new laws or changing of old ones through the process of voting. A parliament in a country usually presents a new law or how an old one should be changed and then they vote on it. This is the legislative process and the laws themselves are the legislature. Legislation can't be changed by any other group.
I am going to go ahead and say that your answer is C because regions can end for many reasons and most of which I'm certain of which are affected by the physical characteristics of the region.
I hope that this helps. :)