There are three blocks, A, B and C. Block A contains one medium yellow square. Block B is to the left of block A. It has a medium yellow square and a medium blue square. The medium yellow square is touching the bottom edge of this block. This object is below the medium blue square. Finally, there is block C. It is above block A. It contains two medium black squares. Below medium black square number two which is below a medium blue square is medium black square number one. It is touching the bottom edge of this block. This object is below the medium blue square.
Which object is below a medium blue square? medium black square number two or the medium black square which is touching the bottom edge of a block?
medium black square  number two the medium black square  which is touching the bottom edge of a block  both of them none of them