In this first half of the speech it shows us the Churchill is good at taking orders and also good team work since he had to make a team that will defeat the Germans. In the second half of his speech it shows us that he is determined and motivated about this cause and that victory is the only thing that can happen or there is no survival.
The answer that best applies to both the Tang and Song dynasties would be C. A Reliable food production and distribution system. This gave both dynasties the ability to thrive.
