The answer is B. Scientists study artifacts they discover to form ideas on what life was like in the past. Sometimes there will pieces that doesn't make sense and so they study some more until it makes sense.
The answer is iron. The Hittites learned to smelt and work with the element before any other civilization.
Foreign policy involves C) many different policies on many different topics. These topics range from economic issues, to security issues, as well as a variety of other issues from the environment, to health, or trade.
