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: ANNIVERSARY GIFTS 
Clue: In one form or another you can fork over this metal on the 5th or 25th anniversary

A: silver
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Q: Category: YOU ARE SO FOXY! 
Clue: The foxglove plant is the main source of this medicine used as a stimulant  in damaged heart tissue

A: digitalis
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Q: Category: DANCING WITH THE TSARS 
Clue: In 1801, Tsar Paul I brought Charles Didelot, the man who introduced flesh-colored tights, to this city as Ballet Master

A:
saint petersburg
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