We have three blocks, A, B and C. There is one medium black square in block A. Below block A is block B. It contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. It is below medium yellow square number two and a medium black square. Below medium yellow square number two there is the medium black square. Above block B there is block C with one medium blue square in it.
Which object is below a medium yellow square? the medium black square that is in block B or the medium black square which is in block A?
the medium black square  that is in block B the medium black square  which is in block A both of them none of them