Why did the Knight allow Gawain to keep the girdle?

According to stephen hawking in the "origin of the universe" lecture, "why are we here" and "where did we come from" are questions that

Hi how are i have some questions about english subject can you answer for me ?

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.