Well for one, there was the idea that Communism was a direct threat to Democracy itself. That the rise of Communism would be the downfall of Democracy. As well, there was the fear that Communist countries would align with each other, the threat of nuclear war was already a huge scare and as such an alliance would have been seen as a threat to the US.
Answer:
The theologian who argued the existence of God from motion, causality, possibility, imperfection and design was Thomas Aquinas
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Explanation:
Thomas Aquinas is considered one of the Catholic Church's greatest theologians and philosophers. In his book, Quinque viæ (Latin for 'Five Ways') he made five above mentioned logical arguements regarding the existence of God.
I believe the answer is D. The settlers of Roanoke just disappeared and it's still a mystery as to why.