TASK DEFINITION: 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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: GUINNESS RECORDS 
Clue: With an average of 80.5 years, this Asian country leads the world in life expectancy

SOLUTION: japan

PROBLEM: Category: "T" COUNTRIES 
Clue: Slightly larger than Texas, it borders the Black Sea & the Mediterranean Sea

SOLUTION: turkey

PROBLEM: Category: "B" IN GEOGRAPHY 
Clue: This country consists of a Muslim-Croat federation & a Serb republic

SOLUTION:
bosnia