There are three blocks, A, B and C. A medium blue square is in block A. Block B is below block A. It has two medium black squares. Below medium black square number two there is medium black square number one. A medium yellow square is touching the bottom edge of this block. It is below medium black square number one and medium black square number two. Finally, there is block C. It is to the left of block B. It has one medium black square. A medium blue square is below the medium black square.
Which object is to the left of a medium black square? the medium black square that is in block C or medium black square number one?
the medium black square  that is in block C medium black square  number one both of them none of them