We have three blocks, A, B and C. Blocks B and C are to the left of A. Block A contains a medium yellow square. Block B contains two medium black squares. Below medium black square number two there is medium black square number one. Block C contains a medium black square and a medium yellow square. The medium black square is below the medium yellow square.
Which object is to the left of a medium yellow square? the medium black square that is in block C or medium black square number two?
the medium black square  that is in block C medium black square  number two both of them none of them