There are three blocks, A, B and C. Block C is above A and block A is below B. Block A has a medium blue square. Block B has one medium blue square. And block C has one medium black square, one medium yellow square and a medium blue square. The medium black square is below the medium blue square and the medium yellow square. The medium yellow square is below the medium blue square.
Which object is above a medium blue square? the medium blue square which is in block B or the medium blue square that is in block C?
the medium blue square  which is in block B the medium blue square  that is in block C both of them none of them