When a train stops suddenly,passengers in the running train feel an instant jerk in the forward direction because

  • A
    The back of seat suddenly pushes the passengers forward
  • B
    Inertia of rest stops the train and takes the body forward
  • C
    Upper part of the body continues to be in the state of motion whereas the lower part of the body in contact with seat remains at rest
  • D
    Nothing can be said due to insufficient data

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