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