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