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