There are two blocks, A and B. Three medium blue squares are in block A. Medium blue square number one is below medium blue square number two which is below medium blue square number three. It is touching the bottom edge of this block. This shape is below medium blue square number three. Below block A is block B. It contains a medium black square. It also contains a medium yellow square. Below the medium black square is the medium yellow square.
Which object is below a medium blue square? the black object or the medium yellow square that is touching the bottom edge of a block?
the black object the medium yellow square  that is touching the bottom edge of a block  both of them none of them