Answer:
Person B
Explanation:
Person B will hear the frequency that is lower than the B- flat.
You are trying to convert mass to volume. That ain't working
He reasoned that since parallax could not be observed for celestial objects near the sun, then the earth was stationary. This erroneous assumption was because at the time he had no way of knowing that celestial objects were so far away that their parallax angles were too small to detect.
