There are two blocks. We call them A and B. A medium yellow square is in block A. Block B is below block A. It has two medium blue squares. Below medium blue square number two is medium blue square number one. A medium black square is also touching the bottom edge of this block. It also has a medium yellow square. It is below medium blue square number two and medium blue square number one. Below medium blue square number one there is the medium black square. It is below medium blue square number two.
Which object is below a medium blue square? the medium yellow square that is in block B or the medium yellow square that is in block A?
the medium yellow square  that is in block B the medium yellow square  that is in block A both of them none of them