can someone please explain why the answer is E>A=B=D>C

Question 5 balls of equal volume but unknown densities are sitting in water. The level of water in each container is the same. Ball C attached to the bottom by a rope, ball D is hanging from a rope, and ball E is resting on the bottom. Rank the weight on the scale for each container from largest to smallest. (Use > and = when appropriate) To obtain part marks for the problem, explain your reasoning below