We have three blocks, A, B and C. Block A contains a big yellow circle. Block B is above block A. It has one medium black triangle. To the right of block A there is block C. It contains one small black triangle, a medium black triangle and one small blue square. One small yellow square is also in this block. To the right of and above the small blue square which is to the left of the small yellow square is the small black triangle.. To the right of and above the small blue square there is the medium black triangle.
What is above the yellow circle? a medium black triangle or a small yellow square?
medium black triangle  small yellow square  both of them none of them