Which sentences in this excerpt from ernest hemingway's "in another country" reflect the theme of the psychological alienation caused by war?

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?

How does this comparison reinforce what powell is trying to say in this paragraph

Which sentence is the most effective in stating the overall purpose of section 4, “confidentiality of user names and passwords? ”