There are three blocks. Lets call them A, B and C. Two medium yellow squares are in block A. Below medium yellow square number two there is medium yellow square number one. A medium black square is touching the bottom edge of this block. It is below medium yellow square number two and medium yellow square number one. Block B is to the right of block A. It has one medium yellow square and a medium blue square. The medium yellow square is touching the bottom edge of this block. This shape is below the medium blue square. Above block A there is block C. It contains one medium blue square.
Which object is below a medium blue square? medium yellow square number one or the medium yellow square that is touching the bottom edge of a block?
medium yellow square  number one the medium yellow square  that is touching the bottom edge of a block  both of them none of them