The secret police formed by Hitler to operate within Germany were known as the "SS', although the responsibilities of the SS soon spread to more than just domestic policing. <span />
The answer would be B. Communist
Isaac Netwon is a world famous scientist and physicist whose ideas and discoveries have shaken the very grounds of physics at the time and the predictions that he made at the time are still considered today to be fundamental in terms of knowledge. His ideas also moved philosophers in various ways to think about different metaphysical topics that were related to his work.