Question

Based on the above quote from historian Lewis Gaddis, it can be determined that he believes that

Stalin held little regard for individual rights
national security supersedes liberty
Stalin acted on behalf of his personal environment
the Warsaw Pact was a union of one

Answer 1

If this is the missing quote: 
 "World politics was an extension of Soviet politics, which was in turn an extension of Stalin's preferred personal environment: a zero-sum game, in which achieving security for one meant depriving everyone else of it."—Lewis Gaddis, American historian

Lewis Gaddis believes that  Stalin held little regard for individual rights

Lewis Gaddis believes this thought because Stalin,himself, believes that he is always right and what he decides on is the best decision regardless of what others think.

Answer 2

The correct answer is A) Stalin had little regard for individual rights.

Based on the quote from historian Lewis Gaddis, it can be determined that he believed that Stalin had little regard for individual rights.

The quote says: "World politics was an extension of Soviet Politics, which was, in turn, an extension of Stalin's preferred personal environment: a zero-sum game, in which achieving security for one meant depriving everyone else of it."

In the quote, Gaddis expresses the power Joseph Stalin had as a dictator of Russia and how he did not consider the rights of civilians.