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: WORD ODDITIES
Clue: This Britishism, a homophone of a letter in the alphabet, has one consonant followed by a line of 4 vowels

Answer: queue

Question: Category: LANDMARKS
Clue: In the 1879 Mathew Brady photo seen here, this structure was about 150 feet tall

Answer: washington monument

Question: Category: MODERN TECHNOLOGY
Clue: Common name given Douglas Engelbart's device, an "X-Y position indicator for a display system"

Answer:
mouse