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: POLAND 
Clue: After WWII, over 80% of the buildings in this capital were uninhabitable
warsaw

Category: SOUP ALPHABET 
Clue: "B" is for this thin soup; Swanson's makes beef, chicken & vegetable varieties
broth

Category: THE AGRICULTURAL HALL OF FAME 
Clue: In 1879 Carl de Laval invented a high-speed separator that separated this from whole milk

cream