I want to know the answer to the following question:
What piece of Bach's did Chopin take inspiration for his preludes?
All the background I'm provided with is that "The preludes were perhaps not intended to be played as a group, and may even have been used by him and later pianists as generic preludes to others of his pieces, or even to music by other composers, as Kenneth Hamilton suggests: he has noted a recording by Ferruccio Busoni of 1922, in which the Prelude Op.". Is that enough to answer the question?
Answer: no