We have three blocks. We call them A, B and C. Block A has a medium blue square. Then, we have block B which contains a medium black square. One medium yellow square is also touching the bottom edge of this block. The medium yellow square is below the medium black square. Block C is below block B and above block A. It contains two medium yellow squares. Medium yellow square number one is below medium yellow square number two. One medium black square is also touching the bottom edge of this block. The medium black square is below medium yellow square number two and medium yellow square number one.
Which object is below a medium yellow square? the medium black square that is in block B or the medium black square that is touching the bottom edge of a block?
the medium black square  that is in block B the medium black square  that is touching the bottom edge of a block  both of them none of them