There are three blocks. We call them A, B and C. One medium yellow square is in block A. This block also has a medium blue square. The medium yellow square is touching the bottom edge of this block. It is below the medium blue square. To the right of block A there is block B which contains a medium blue square. One medium black square is also touching the bottom edge of this block. The medium black square is below the medium blue square. Above block A there is block C with a medium yellow square, one medium blue square and a medium black square in it. Below the medium black square there is the medium blue square. Below the medium black square is the medium yellow square. It is below the medium blue square.
Which object is below a medium blue square? the medium blue square that is in block C or the medium blue square that is in block A?
the medium blue square  that is in block C the medium blue square  that is in block A both of them none of them