How does paragraph 7 contribute to the development of ideas in the article in the Commonlit Article Herd Behavior?

Paragraph 7: Some historians believe that Adolf Hitler purposefully took advantage of herd behavior psychology by planting a significant number of undercover German officers in the crowds at his speeches. These officers would enthusiastically cheer for Hitler, and the rest of the crowd followed suit, making it seem as if the entire crowd supported Hitler. These speeches would then be broadcast to a larger public audience, magnifying the effect.

How are the two arguments made in the passages different? a. the first passage claims that pets in class will children with health problems; the second passage says pets will make some health problems worse. b. the first passage claims that students’ nervousness will decrease around pets; the second says that students’ nervousness will increase around pets. c. the first passage claims that pets will make the teacher’s work easier by keeping students busy; the second passage says pets will make the teacher’s work harder. d. the first passage claims that pets in school will be good for kids’ mental health; the second passage says pets will be bad for kids’ mental health.