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