We have three blocks. We call them A, B and C. One medium blue square and a medium black square are in block A. The medium blue square is below the medium black square. Block B is to the right of block A. It contains one medium yellow square. Finally, we have block C above block B. It contains a medium black square. A medium yellow square is also in this block. 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 the medium black square that is in block A?
the medium black square  that is in block C the medium black square  that is in block A both of them none of them