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: HISTORIC AMERICANS 
Clue: He turned down an appointment as a U.S. senator in 1875 because it meant accepting a pardon for treason

A: jefferson davis
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Q: Category: ANIMALS 
Clue: With a young one valued at $1.4 million, Guinness calls them the most costly zoo animals

A: giant pandas
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Q: Category: HOUSEHOLD PRODUCTS 
Clue: According to its earliest ads, .56% of this product was made up of carbonates, mineral matter & uncombined alkali

A:
ivory soap
****