What were three reasons that the americans defeated the british in the south?

I believe the answer is: A.He defeated the Danes and drove them out of England

At that time, the Vkings were regarded as the strongest millitary in Europe. Just like the spartan of greek, the Viking's philosophy is based on seeking hounour through battles. In his battle tactics, Alfred The Gread initiate a blockade for the Viking's ships that left the Danes on England's land to submit and forced to retreat.