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