Answer: the correct answer is E) The kinds of input that a child receives does not seem commensurate with the grammatical knowledge that native speakers possess.
Explanation: the first language acquisition involve a "logical problem" when children can manage all the information because the are still limited in their grammar knowledge.
People might be able to solve coal mining from harming habitats maybe by finding a new way to run trains instead of coal. or by mining for coal less.
Almost certain the answer to the second question is United States had Japan disassemble their air force and military. I think they only have a defensive navy
Reformers fought to end the system of apartheid, which limited the rights of black Africans.
Or
Pro-government and anti-government factions engaged in a civil war for equal rights.