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.

[Q]: Category: BUSINESS 
Clue: On April 17, 1973 this company began operations with the launch of 14 small aircraft from Memphis International Airport
[A]: federal express


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


[Q]: Category: MONARCHS 
Clue: Like his grandmother, Mary, Queen of Scots, this king was beheaded
[A]:
charles i