[Early_S_Man]

Actually ... the term noise is inappropriate. Melody, music, or concerto seem more accurate!

I think you left off a couple of other choices ... c. Exhaust d. Both A & B e. Both A & C f. Both B & C g. ALL ! And, on that basis, I abstain from voting!

Without a recording made with one or more very expensive microphones ... and rather exotic spectral analysis and processing similar to that done in the movie Sneakers, a definitive answer is impossible! And, of course, individual ears and brains process the information differently and reach different conclusions!