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