The United States Constitution can be changed informally. Informal amendments mean that the Constitution does not specifically list these processes as forms of amending the Constitution, but because of change in society or judicial review changed the rule of law de facto.
I would assume the answer would be limited or restricted.
Answer:
B. the ability to add nuts and berries to their diet when meat was in short supply, and D. and the ability to migrate.
Explanation:
A. East and West. Hope this helps!