A Stout old lady was walking with her basket down the middle of a street in Petrograd to the great confusion of the traffic and no small peril to herself. It was pointed out to her that the pavement was the place for foot-passengers, but she replied ‘I'm going to walk where I like. We've got liberty now.’ It did not occur to the dear lady that if liberty entitled the foot-passenger to walk down the middle of the road it also entitled the taxi-driver to drive on the pavement, and that the end of such liberty would be universal chaos. Everything would be getting in everybody else's way and nobody would get anywhere. Individual liberty would have become social anarchy.

Correct Option

The passage explicitly states, "It was pointed out to her that the pavement was the place for foot-passengers." A pedestrian is defined as a person walking, especially in an area set aside for people who are walking. Therefore, the instruction for her to walk on the pavement was directly related to her status as a foot-passenger or pedestrian, aligning with established traffic regulations for designated areas.

Incorrect Options

Options 2, 3, and 4 are incorrect because the lady's attributes of "carrying a basket," being "stout," or being "an old lady" are descriptive elements but do not constitute the reason for her being directed to the pavement. The rationale provided in the passage pertains to the functional designation of urban spaces for different users (pavement for foot-passengers, road for traffic), not personal characteristics or possessions.