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