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