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.

[Q]: Category: BRAND NAMES 
Clue: This brand of petroleum jelly was selling a jar a minute in the U.S. by the 1880s, & it's still a favorite
[A]: vaseline


[Q]: Category: CLEANING UP 
Clue: In 1887 Johnson & Johnson was incorporated in part to improve upon this man's study of antisepsis
[A]: lister


[Q]: Category: BOOKS BY CELEBRITIES 
Clue: In collaboration with Weight Watchers, she shares some low cal fare in "Dining With the Duchess"
[A]:
sarah ferguson