The answer is C, abcb.
the rhyme scheme goes like this:
I hear in the chamber above me (a)
the patter of little feet (b)
the sound of a door that is opened (c)
and voices soft and sweet (b) [it rhymes with "feet"]
Answer:
well you have to react to it. this isnt something we can help. sorry
if you always desire more, you may not appreciate what you already have.