Please help i don't understand ONE QUESTION WITH SOME READING

In the passage, the author states that it is better not to know how manypeople are cruel when forced by circumstances.

What is an example of a circumstance that might force someone to be cruel and why does the author say it is better not to know even ballpark figure?

Which dialogue introduces a conflict?

The goal of __ painters was not to make a photographic representation of a subject, but to capture the impression of a particular moment in time a) still artist b) realist c) impressionist

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.