There are three blocks. Lets call them A, B and C. Block B is to the right of block A and above block C. Block A has a medium yellow square and one medium black square. The medium yellow square is below the medium black square. Block B has one medium black square. The medium black square is below a medium yellow square. And block C has three medium yellow squares. Below medium yellow square number three and medium yellow square number two is medium yellow square number one. Below medium yellow square number three there is medium yellow square number two.
Which object is below a medium yellow square? the medium black square that is in block A or the medium black square that is in block B?
the medium black square  that is in block A the medium black square  that is in block B both of them none of them