We have three blocks, A, B and C. Block A has a medium yellow square. Then, we have block B with one medium black square in it. Finally, above block A we have block C. It is below block B. It has two medium blue squares. Medium blue square number one is touching the bottom edge of this block. Medium blue square number two is below a medium yellow square. Medium blue square number one is below medium blue square number two and the medium yellow square.
What is below the shape that is touching the bottom edge of a block? a medium blue square or a medium black square?
medium blue square  medium black square  both of them none of them