15 They went toward the Seine1 in despair, shivering with cold. At last, they found on the quay one of those ancient night cabs which, as though they were ashamed to show their shabbiness during the day, are never seen round Paris until after dark.

What is the purpose of the personification in paragraph 15?
A.to provide historical context about the time period
B.to introduce a sense of mystery about the setting
C.to direct focus to the newfound danger that the characters face
D.to reflect that the characters’ night of luxury has ended