Describe how Joe and Major McEvoy are killed in How I live Now?

Which three sentences in this excerpt from arthur conan doyle's "the contest" suggest that the author's tone is mocking?

What is the main source of conflict in this passage? lee grew up near the old-growth forest. she loved wandering the trails and looking at the natural beauty around her. but the city council recently approved plans to cut down the forest in order to build a shopping center and apartment buildings. the council believed the development would create new jobs and provide more affordable housing. lee was upset when she heard about the plans to destroy her beloved forest, and she vowed to do something to save it.

What is mostly clearly a disadvantage of living in a world dominated by the presence of televisions according to niel postman?