Question

Which characteristics did early Japanese, Chinese, and Korean civilizations share?

They were friendly nations that shared culture and customs.
They were neighboring nations that shared a common religion.
They were neighboring countries that shared a common history.
They were countries with dissimilar culture and customs.

Answer 1

"They were friendly nations that shared culture and customs." (Option 1) is the best choice — though note the word "friendly" can be misleading. Japan, China and Korea were neighboring societies that shared many cultural traits (Chinese writing, Confucian ideas, Buddhism, government models, art, agriculture, etc.) even though political relations were not always peaceful.