The Southern Song (Chinese: 南宋; 1127–1279) refers to the period after the Song lost control of its northern half to the Jurchen Jin dynasty in the Jin–Song Wars. ... In 1234, the Jin dynasty was conquered by the Mongols, who took control of northern China, maintaining uneasy relations with the Southern Song.
D is the answer for the question
Im pretty sure its c i hope iim right i wanna help :)
Answer:
The answer is:
Both a & b
Explanation:
The South's greatest advantage lay in the fact that they were familiar with the landscape, Southerners could harass Northern invaders.
The military leaders of the South were far superior to those of the North.
By 1860, eleven of the country’s twelve private or state-supported military colleges were in the South.
