Which of following people invaded the Koreans in the 1500's, leaving
their country ruined?
A. The Mongolians
B. The Japanese
C. The Qing Dynasty
D. The British

the Japanese

Explanation:

In 1592, with an army of approximately 158,000 troops, Toyotomi Hideyoshi launched what would end up being the first of two invasions of Korea, with the intent of conquering Joseon Korea and eventually Ming-dynasty China.

id say bottom left to top top left to bottom right and middle to middle

explanation:

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.