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