There are three blocks, A, B and C. Block A has one medium blue square. Block B is to the left of block A. It contains one medium black square and a medium yellow square. The medium black square is below a medium blue square which is below the medium yellow square. This object is below the medium yellow square. Below block B there is block C which has one 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 which is in block B?
the medium yellow square  that is in block C the medium yellow square  which is in block B both of them none of them