Three blocks of identical size amp; shape are placed in a partially filled tank of water. The blocks with mass 1.0 kg and 3.0 kg come to rest at the...

Can you please explain why the answer would be block E.

Three blocks of identical size & shape are placed in a partially filled tank of water. The blockswith mass 1.0 kg and 3.0 kg come to rest at the locations shown. At which of the positionsindicated would a block with a mass of 2.0 kg be found in this tank? E