We have three blocks, A, B and C. Block B is above A. Block A is to the right of C. Block A contains two medium yellow squares. Below medium yellow square number two there is medium yellow square number one. Block B has two medium blue squares. Medium blue square number one is touching the bottom edge of this block. This block also has a medium black square. Below the medium black square and medium blue square number two there is medium blue square number one. Medium blue square number two is below the medium black square. And block C contains one medium black square.
Which object is to the left of 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