It is comparing the speaker's solitariness to that of a cloud
That there will always be ups and down in life and you should look for a job you can handle and try your best to make money in the future and live a happy life
Can you send a picture of the graph?
Answer: I think a book urges you to read it based on a cover, a book urges you to use your eyesight because without your eyes I don't think you'll be able to read it haha. A book also urges you to imagine the setting and what's happening from the story in your head. For now those are all I know of uurgg
The answer to your question is letter A