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