Japanese firms investing in South Korea.
Answer:
B. geographic features protected the North China Plain.
Explanation:
The North China Plain is protected on four fronts by imposing geographical feature, which allowed early Chinese civilization to flourish without much external influence or threat.
To the north, the Gobi Desert, to the West, the Chinese Mountains, and the Tibet, to the South, more mountains, and to the West, the China Sea and the Pacific Ocean.
North , the north had supplies and demands over south , north had coal and cotton and more ''advanced" in materials that the south originally wanted .
John F. Kennedy
"Ask not what your country can do for you - ask what can you do for your country"