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: FLAGS 
Clue: Christopher Columbus' flag bore a cross with their initials on either side
ferdinand & isabella

Category: CINEMA 
Clue: Vangelis' theme from this 1981 British film took a record 21 weeks on the charts to reach No. 1
"chariots of fire"

Category: THE QUOTE OF THE MONTH CLUB 
Clue: In a poem, these 5 words precede "breeding Lilacs out of the dead land... stirring Dull roots with spring rain"

april is the cruellest month