C. It legitimized the power of the national government over states
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.
Almost all humans to a certain extent are dissatisfied with the limited availability of resources, but if you're speaking from an academic point of view, it would be Economists, since they study choices made from this limited availability.