Why did Katniss refuse to cry or show any sign of weakness as she said goodbye to her mother and sister?

Which of the following best explains why the author chose the compare-and-contrast structure for paragraph 2

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?

The author’s purpose for including this in the introduction is