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