There are three blocks. We call them A, B and C. Block A has a medium black circle. A medium yellow square is to the left of the medium black circle. Block B is below block A. It has a small black square, a medium yellow circle and a small blue circle. The small black square is to the right of the small blue circle. The medium yellow circle is to the right of the small blue circle. Above the medium yellow circle there is the small black square. Finally, there is block C which is to the left of block A. It has one medium blue circle.
What is below the medium yellow square? a medium yellow circle or a medium blue circle?
medium yellow circle  medium blue circle  both of them none of them