Answer:
They built them on hills.
Explanation:
Of course, they did this to create a natural defense from the attack of foreign invaders. For example, the city of Rome itself was built on seven famous hills. Of course, through time they tried to fortify them as much as possible, but the main defense laid on the physical location of those cities.
Yes they do check their site as well
Answer: C. Unilineality
Explanation: Unilineality is a system of determining descendant group in which one belongs to either the male (patriline) or female(matriline) both not both. Both patrilineal and matrilineal system are both examples of a unilineal system.
Ambilineal are non-unilineal where individual can be affiliated to more than one genealogical line.
Cosanguinity refers to being of the same descent with another individual.
