Answer: B) "…as the sun arose, I saw it throwing off its nightly clothing of mist…"
Step-by-step explanation: personification is a figure of speech that consists in giving human characteristics to non human objects (or animals). From the given options, the sentence that contains a clear example of personification, is the corresponding to option B: "…as the sun arose, I saw it throwing off its nightly clothing of mist…" because it is saying that the sun (non human object) is throwing off its nightly clothing (human characteristic).