There are three blocks. We call them A, B and C. Block A is above C. Block C is below B. Block A has a medium yellow square. Block B has a medium blue square. And block C contains two medium blue squares. A medium black square is touching the bottom edge of this block. Below medium blue square number two there is medium blue square number one.. The medium black square is below the medium object which is below medium blue square number two. It is below medium blue square number two.
What is below the yellow object? a medium blue square or a medium black square that is touching the bottom edge of a block?
medium blue square  medium black square  that is touching the bottom edge of a block  both of them none of them