I’m confused on the options please help

In “the things they carried”, why is jimmy unsure when martha calls the pebble “a token of her truest feelings”

While doing your research, all of the following would be good secondary sources to use to develop a general overview about the vietnam war, except: a. the encyclopedia britannica b. an interview with a veteran of the war c. a textbook on the history of the 20th century d. an online resource such as ‘wikipedia.org’ or ‘’

Which of the following arguments uses a non sequitur fallacy? a. if we allow students to wear caps to school, soon we'll have to let them wear gang colors. b. you should vote for sylvia for class president because everyone else on the squad is voting for her. c. regulations on motorists should be lifted because factories are a bigger source of pollution. d. the gray wolves of winter falls park should be protected because they need our support.