There are three blocks. Lets call them A, B and C. A medium blue square, one medium yellow square and one medium black square are in block A. The medium blue square is below the medium yellow square and the medium black square. Below the medium black square there is the medium yellow square. Below block A there is block B with a medium blue square in it. Finally, there is block C below block B. It contains one medium black square.
Which object is below a medium blue square? the medium black square that is in block C or the medium black square that is in block A?
the medium black square  that is in block C the medium black square  that is in block A both of them none of them