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