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