We have three blocks, A, B and C. A medium black square is in block A. Then, we have block B. It contains one medium yellow square. Finally, we have block C. It is to the left of block B and above block A. It contains a medium black square and one medium blue square. Below the medium blue square and a medium yellow square there is the medium black square. Below the medium blue square is the medium yellow square.
Which object is above a medium black 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