There are three blocks, A, B and C. There is a medium yellow square in block A. Block B is below block A. It has a medium blue square and a medium black square. Below the medium black square there is the medium blue square. Finally, we have block C which is above block A. It has 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.
Which object is below a medium yellow square? the medium black square or the blue thing?
the medium black square  the blue thing both of them none of them