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