We have three blocks, A, B and C. Block A is to the left of C. Block B is to the left of A. Block A contains one medium black square. Block B contains a medium yellow square and one medium black square. Below the medium black square is the medium yellow square. Block C has a medium yellow square and one medium black square. The medium yellow square is touching the bottom edge of this block. A medium blue square is below the medium black square. The medium yellow square is below the medium blue square. It is below the 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 which is in block C?
the medium black square  that is in block B the medium black square  which is in block C both of them none of them