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: BODIES OF WATER 
Clue: This sea that extends about 1,200 miles was referred to in ancient times as the Erythraean Sea

Answer: the red sea


Question: Category: TECHNOLOGY 
Clue: In 1913 this alloy was invented by Harry Brearley of Sheffield, England, a city known for its cutlery since before 1400

Answer: stainless steel


Question: Category: BANDS OF THE '70s 
Clue: In billing order, this quartet's members were born in Los Angeles, Dallas, Blackpool & Toronto

Answer:
crosby, stills, nash & young