We have three blocks. We call them A, B and C. Block A has a medium blue square and a medium yellow square. Below the medium yellow square is the medium blue square. Above block A is block B. It contains one medium black square. Finally, we have block C. It is to the right of block B. It has two medium black squares. Below medium black square number two there is medium black square number one. It also has a medium blue square. Below medium black square number one and medium black square number two is the medium blue square.
Which object is below a medium black square? the medium black square that is in block B or medium black square number one?
the medium black square  that is in block B medium black square  number one both of them none of them