Which is the main purpose of a thesaurus? to provide word synonyms to provide word parts of speech to provide word pronunciations to provide word histories

Based on the events of "object lesson, part 1," what will most likely happen in “object lesson, part 2”? howard ruffo will return the money to miss carpenter. miss carpenter will find the missing envelope of money in her purse. the girl with the italian haircut will confess to taking the money. ellery queen will use clues to find the missing money.