I think the answer is A because it’s a desert
A country needs rules about citizens cause in reality you cant have random people, bad record or not, coming in your country and just being a citizen instantly without any proof of trust, little do they know they could be a terrorist with the rights of a citizen just cause theirs no way to justify who's one or not.
B due to the Canadian provinces of Newfoundland and Labrador having 10,900 miles of coastline by themselves
I believe that European monarchies sought to consolidate and maintain the power (political, religious, and economic) of their rulers (the monarchs). They did this by passing laws, mandates, and regulations that were designed to allow for governmental autonomy, that is, to ensure that the will of the monarch was not challenged by the citizenry, religious groups, or philosophers and scientists.