There are three blocks, A, B and C. Block B is below blocks C and A. Block A has a small black circle and one medium black circle. The small black circle is near to and above a small blue circle. This shape is below the medium black circle. Block B has one big blue square. And block C contains one small black triangle.
What is above the big thing? a small blue circle or a medium black circle?
small blue circle  medium black circle  both of them none of them