Answer:
Summary. The poem tells the story of a brigade consisting of 600 soldiers who rode on horseback into the “valley of death” for half a league (about one and a half miles).
Explanation:
When different ideas come to your head whether they're correct or not. Then eliminate the non-valid ones.
Answer: B) depression
In these lines, the author is showing all the pain that he has over the "fallen star," most likely someone close to him who has died. The poem has a gloomy, sad mood that is consistent with feelings of depression. It is likely that the author is grieving. We can identify this mood through words such as: "moody, tearful night," "the black murk that hides the star," "cruel hands," "hold me powerless," "helpless soul" and "surrounding cloud."
Irony is using language to generally express the opposite of what they are actually saying.
Foreshadowing is predicting a future event.
Very different. :)
Hope I helped, let me know if you have any other questions!