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.
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Question: Category: TV DRAMAS BY EPISODE 
Clue: "Waterloo at Southfork"

Answer: dallas


Question: Category: GOVERNMENT 
Clue: Under Medicare most Americans this age & over pay a 15% surtax to cover catastrophic illness

Answer: 65


Question: Category: SPELL IT: -ABLE OR -IBLE? 
Clue: Easily carried, such as a typewriter or radio

Answer:
p-o-r-t-a-b-l-e