We have three blocks, A, B and C. Block C is below block A and to the left of block B. Block A contains two medium black squares. Medium black square number one is below medium black square number two. Block B has a medium yellow square. And block C has a medium yellow square. It also contains one medium blue square. The medium blue square is below the medium yellow square.
Which object is above a medium square? the medium yellow square which is in block C or the medium yellow square which is in block B?
the medium yellow square  which is in block C the medium yellow square  which is in block B both of them none of them