We have three blocks, A, B and C. A medium black square and a medium yellow square are in block A. Below the medium yellow square is a medium blue square. Below the medium blue square and the medium yellow square there is the medium black square. Above block A is block B with one medium yellow square in it. Finally, there is block C which 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 above a medium black square? the medium yellow square that is in block B or the medium yellow square that is in block C?
the medium yellow square  that is in block B the medium yellow square  that is in block C both of them none of them