Validity," since this means that the claims are "valid" and therefore come from reliable and trustworthy sources
John hancock did not agree with the colonial system. He wanted America to be free. You should always remember that John Hancock, when he signed the Declaration of Independence, signed his name the largest to show his disapproval of the king. Hope this is what you are looking for
Its is c because in history it talks about that
It was the internal reforms of Mikhail Gorbachev, the last Soviet leader that led to the end of the Cold War