I want to know the answer to the following question:
Who was in control of the south of China?
All the background I'm provided with is that "After Cao's defeat at the naval Battle of Red Cliffs in 208 AD, China was divided into three spheres of influence, with Cao Cao dominating the north, Sun Quan (182–252 AD) dominating the south, and Liu Bei (161–223 AD) dominating the west.". Is that enough to answer the question?
Answer: yes