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