Avisible disturbance propagates around a crowded soccer stadium when fans, section by section, jump up and then sit back down. what type of wave is this?
a) spherical wave
b) polarized wave
c) polarized spherical wave
d) longitudinal wave
e) transverse wave

Transverse wave

Explanation:

This type of wave is transverse wave. Transverse wave is a wave that occurs when the vibration of the medium is perpendicular to the direction of the wave. According to the question, the crowd were standing vertically but they were arranged in the stadium in the horizontal manner.

real, smaller and upside-down.   so the answer should be b.