There are three blocks, A, B and C. Block A is above C. Block C is above B. Block A has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. A medium blue square is touching the bottom edge of this block. It is below medium yellow square number one and medium yellow square number two. Block B has a medium yellow square and one medium black square. The medium yellow square is below the medium black square. And block C contains one medium blue square.
Which object is above a medium blue square? the medium blue square which is touching the bottom edge of a block or the black object?
the medium blue square  which is touching the bottom edge of a block  the black object both of them none of them