What type of figurative language is it and what part of the summary is the quote for it

I think it's personification. The author is giving human qualities to the light, by the sun streaks "climbed" and "fell."

The quote would be the first sentence: "Now the light was lifting as the sun went down, and the sun streaks climbed up the wall and fell over the feeding racks and over the heads of the horses."

Explanation:

chapter i -- paris: september, 1792

a surging, seething, murmuring crowd of beings that are human only in name, for to the eye and ear they seem naught but savage creatures, animated by vile passions and by the lust of vengeance and of hate.

during the greater part of the day the guillotine had been kept busy at its ghastly work: all that france had boasted of in the past centuries, of ancient names, and blue blood, had paid toll to her desire for liberty and for fraternity.

hope this answer you: )!