We have three blocks. We call them A, B and C. A medium yellow square and a medium black square are in block A. It also contains a medium blue square. Below the medium black square is the medium yellow square. Below the yellow shape which is below the medium black square is the medium blue square. This object is below the medium black square. Block B is below block A. It contains one medium black square. Finally, we have block C to the left of block B. It has a medium yellow square.
Which object is above a medium black square? the medium yellow square that is in block A or the medium yellow square that is in block C?
the medium yellow square  that is in block A the medium yellow square  that is in block C both of them none of them