Me. this is in the story the adventures of tom sawyer what was the name of mark twain's hometown and the author's model for the little village of st. petersburg?
a. wichita, kansas
b. biloxi, mississippi
c. nashville, tennessee
d. hannibal, missouri

what is the passage

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."