We have three blocks. We call them A, B and C. There are a medium black square and a medium yellow square in block A. The medium black square is below the medium yellow square. Block B is to the right of block A. It contains a medium blue square. To the left of block B there is block C. It contains a medium yellow square. It also contains one medium blue square. The medium blue square is below the medium yellow square.
Which object is to the left of a medium blue square? the medium yellow square that is in block C or the medium yellow square that is in block A?
the medium yellow square  that is in block C the medium yellow square  that is in block A both of them none of them