Respuesta :
D) She noticed that he wore big blue spectacles with sidelights, and had a bush side-whisker over his coat-collar that completely hid his cheeks and face.
:)
Standing with your back to someone is a classic way to potray isolation and alienation. The detail of the falling snow also adds lonliness to the description. Even though I haven't read the passage, B seems to be the most logical answer.