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