There are three blocks, A, B and C. Block A contains one medium blue square. Then, there is block B with one medium yellow square in it. Finally, we have block C which is to the right of block B. Block A is below it. It has a medium black square. This block also has one medium yellow square and one medium blue square. The medium black square is below the medium blue square and the medium yellow square. Below the medium blue square there is the 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