The correct answer is A) The narrator feels his life is slowly draining away.
Step-by-step explanation:
In this poem, the author refers to the twilight or end of daylight and compares this to the end of life and death, this is mentioned in "by black night doth take away, Death’s second self". Also, by stating "In me, thou seest the twilight " the author indirectly suggests the end of the day or the end of life is approaching. According to this, one inference or guess supported by the passage is "The narrator feels his life is slowly draining away" because the narrator directly explains death is close and this means, his life is ending.