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