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