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