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