What does good exposition do for the reader of a story?

Which passage is an example of inductive reasoning? o a. reina's fingers hurt when she plays the guitar for two hours a day. she tells her mother that all guitarists feel pain when they play for a long time. o b. erin thinks blue shirts are the latest fashion trend. she sees many girls at her school wearing blue shirts and decides to buy one for herself. c. daniela thinks that watching too much tv can ruin your eyesight she consults a research book on optometry to find data that support her theory. d. beth argues that eating sweets can rot your teeth. she gets information from her dentist about the number of cavities in patients who eat a lot of candy.