Why are the outsides of the buildings in
philibert place darkened

The options of the question are A) London weather is foggy. B) They are stained wiyh soot. C) The area is too crowed. D) They were once atractive.  

The correct answer is B) They are stained with soot.

The outsides of the buildings in Philibert Place are darkened because they are stained with soot.

“The Lost Prince” is a book written by Frances Hodgson Brunett in 1915. It is a children novel that tells the story of the child Marco Loristan. Chapter 1 of the story is titled “The New Lodgers at No. 7 Philibert Place”, where the author describe the row of dingy houses in London, referring specifically to Philibert Place buildings and its outsides stained with soot.

35 is your answer because i looked it up