In a sound wave, we find a location and time when the density fluctuations are at a maximum.
At this same location and time ...
a) Pressure fluctuations and displacement are minimum.
b) Pressure fluctuations and displacement are maximum.
c) Pressure fluctuations are maximum and displacement is minimum.
d) Pressure fluctuations are minimum and displacement is maximum.
e) There is no relation between density fluctuations, pressure fluctuations and displacement.