A. to remember that she was once loved for who she really is
The lines that give you the clue to the answer are "dream of the soft look your eyes hand once". From this we can infer that the soft look is one of love and since it says "had once" means that his eyes don't have that look any more. The word dream indicates that this should be a memory. Because of this options C and D are automatically wrong. The only action the speaker is asking is for him to remember, not visit or write. There is no real mention of youth and beauty so we can also eliminate Option B.
