Twain grew up in hannibal, missouri, which would later provide the setting for huckleberry finn and tom sawyer. he apprenticed with a printer. he also worked as a typesetter and contributed articles to his older brother orion's newspaper. after toiling as a printer in various cities, he became a master riverboat pilot on the mississippi river, before heading west to join orion. along the way he visited a number of indian reservations. he was a failure at gold mining, so he next turned to journalism. while a reporter, he wrote a humorous story, "the celebrated jumping frog of calaveras county", which became very popular and brought nationwide attention. his travelogues were also well-received. twain had found his calling. which sentence represents a digression which is not relevant to the point of the passage? a) along the way he visited a number of indian reservations. b) he was a failure at gold mining, so he next turned to journalism. c) he also worked as a typesetter and contributed articles to his older brother orion's newspaper. d) after toiling as a printer in various cities, he became a master riverboat pilot on the mississippi river, before heading west to join orion.