There are three blocks, A, B and C. Block A has two medium black squares. Below medium black square number two and a medium blue square there is medium black square number one. Medium black square number two is below the medium blue square. Above block A we have block B with a medium black square in it. Finally, we have block C which is above block A. It contains one medium yellow square. The medium yellow square is below a medium black square.
What is below the blue shape? a medium black square that is in block C or a medium black square number one?
medium black square  that is in block C medium black square  number one both of them none of them