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