The answer is A because it states differ which means contrast.
Assuming sea dogs means Pirates, then Navymen.
<span>D. Were accompanied by an increase in trade</span>
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.
Answer:
<h3>They led pope urban to accept scientific explanation of the world</h3>