Where is the blank? I’m sorry to answer without a answer just elaborate in comments
The correct answer is A.
George F. Kennan was an American diplomat and historian who has a supporter of the containment strategy for the design of the relationship between the US and communism, and therefore with the URSS. His ideas inspired significant policies such as the Truman Doctrine.
The policy of containment governed foreign regulations between the US and the URSS during the Cold War era. It consisted on giving response and limiting each of the moves undertaken by the URSS aiming to enhance communist influence in Eastern Europe, China, Korea, Africa, Vietnam, and Latin America.
Bomb shelters and refugee centres, I think
<span>"I was the very first Roman Emperor, ruling with absolute power until I was assassinated at the Roman Senate." = JULIUS CAESAR (although technically he was Dictator of the Roman Republic rather than taking the title "emperor").
"I was a Roman Emperor who was rumored to have started the Great Fire of Rome but instead I used it as an excuse to persecute Christians." = NERO
"According to legend, my brother and I built the city of Rome until we fought over its name so I killed him." = ROMULUS
"My great uncle was Julius Caesar so I hunted those responsible for his murder, was the first emperor to take the title 'Caesar,' and am credited with bringing about the Pax Romana." = CAESAR AUGUSTUS
"I was a Roman Emperor who 'defeated' the god of the sea Neptune, collecting seashells as my prize, and threatened to make my horse a Consul of Rome." = CALIGULA
"I was a Roman Emperor who persecuted Christians and decided that the best solution to Rome's problems was to divide it into An Eastern Empire and a Western Empire." = DIOCLETIAN</span>
Due to the fact that the first and third don't make sense, I think the answer should be the second.
Hope this Helps! :)