The answer is C. Main, Militarism, Alliances, Imperialism, and Nationalism.
Answer:
Linnaeus put all the organisms of the world into kingdoms which were Plantae and Animalia
Explanation:
The answer to your question is number 4
Russian Scientist Roald Z.
He was the Vice President for President Eisenhower that served at that time period. (I LIKE IKE!!!!)