A person stands very close to the edge of a railway platform while a high-speed train passes. Air in the narrow gap between the person and the train can move much faster than the air on the person's other side. Which consequence is most consistent with Bernoulli's principle?

Options

• Option A

  The pressure between the train and the person increases and pushes the person away from the train.

• Option B

  The pressure between the train and the person decreases, so a pressure imbalance can move the person toward the train.

• Option C

  The pressures on both sides must remain exactly equal because both regions are exposed to the atmosphere.

• Option D

  Only the gravitational force on the person changes.