Answer:
D. 1949
Explanation:
Each of these 3 events took place in the year 1949.
1. The soviet union tested it's first atomic bomb on the 29th day of August 1949 in what is now the modern day kazakhstan.
2. NATO was formed on the 4th of April 1948. It was formed by 12 founding members of alliance.
3. This is also known as the greta retreat. Also happened in 1949. The leaders of the Kuomintang fled to Taiwan.
D.
Answer: B 1846
tell me if im wrong
