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: 21st CENTURY WORLD LEADERS 
Clue: "Big Love" meets "The West Wing"?  Pres. Jacob Zuma, who presides over this country from Pretoria, has 3 wives
south africa

Category: OH, THE HUMANITIES! 
Clue: Bach did most of his composing for this Protestant denomination
lutheran

Category: MAJOR LEAGUE BASEBALL NICKNAMES 
Clue: Yankee batting champ "Donnie Baseball"

mattingly