There are three blocks, A, B and C. Block A has one small yellow circle. Below block A is block B with one medium yellow circle and one small black circle in it. The medium yellow circle is to the left of the small black circle. Below block A there is block C which contains a medium black triangle and a small black square. To the right of the small black square is the medium black triangle.
What is below the small yellow circle? a medium yellow circle or a small black circle?
medium yellow circle  small black circle  both of them none of them