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