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: -OLOGIES 
Clue: Seismology studies the seismic waves produced by these plate shifts

Answer: earthquakes


Question: Category: OLD HISTORY 
Clue: In this work Virgil wrote that "a woman is always a fickle, unstable thing"

Answer: the aeneid


Question: Category: THE 1690s 
Clue: "Cendrillon", the French name for this fairy tale, was part of 1697's "Tales of Mother Goose" by Charles Perrault

Answer:
"cinderella"