The amount of trees in a given location?
The answer you are looking for is pangea
Cultures most typically develop without a conscious planning (but there are exceptions! So i would say that while B) and C) are not typically or commonly true, they could be true!).
They are usually simply a product of the interaction of people and their environment.
The most reliable way in which cultures are unique is when they''re not influenced by other cultures, so the best answer is A) The climate of the area may isolate the culture, preventing outside influences.
Answer:
The concept developed in Europe during the Middle Ages. Traditionally the granting of a charter gave a settlement and its inhabitants the right to town privileges under the feudal system. Townspeople who lived in chartered towns were burghers, as opposed to serfs who lived in villages.
Advantage: Because of your accent, some people may be interested in you. Not in you particularly, but since your accent sounds nice, they may be interested from where you are and the history of that place.
Disadvantage: Some people may find your accent weird and stuff, you may get bullied and made fun of because of it.