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