You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: A BUSINESS IS BORN 
Clue: The first drug-store in this chain began operating out of a Chicago hotel in 1901; in 2009 the 7,000th store opened
walgreens

Category: HARRY GUYS 
Clue: This trumpet-playing band-leader helped Sinatra get started, & lost him to the Tommy Dorsey band
harry james

Category: 19th CENTURY PERSONALITIES 
Clue: Carlotta Grisi, one of the most famous of these performers, created the title role in "Giselle" in 1841

ballerina