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: CHOOSE A "CIDE" 
Clue: Final act of playwrights Seneca & von Kleist
suicide

Category: FRENCH CLASS 
Clue: If you approach the signal called feu rouge on a French road, you'd better do this
stop

Category: PRESIDENTS & FIRST LADIES 
Clue: In the 1870s she banned not only alcohol from the White House but smoking as well

"lemonade" lucy hayes