It sounds like you might have a list to choose from, but there is nothing here. Is there more to the question? :)
International trade enables specialization, which brings increased efficiency and greater competition to spur the market.
This happens because Specialization would make each nation to focus on producing certain type of products in which they would gain a competitive advantage towards other (either because they had the necessary materials sources or labor qualities) and would create better and cheaper product in the market.
I think it is C but I am not sure
Answer:
The two armies met at Stamford Bridge, just outside York, on 25 September 1066. It was a bloody battle and one in which Harold's army (the Saxons) broke through the Viking invaders front line to go on and win the battle. ... The Vikings didn't know what hit them. Harold's men killed Harald Hardrada and Tostig.
Explanation: