We have three blocks. Lets call them A, B and C. Block B is to the left of C. Block C is to the left of A. Block A contains two medium black squares. Below medium black square number two is medium black square number one. Block B contains a medium black square and one medium blue square. The medium black square is below the medium blue square. And block C has a medium yellow square and a medium black square. Below the medium black square is the medium yellow square.
Which object is below a medium 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