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