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