There are three blocks, A, B and C. Block A is below C. Block B is below A. Block A has one small yellow circle and one medium black square. To the left of the medium black square there is the small yellow circle. Block B contains a small black triangle. One big black square is also in this block. Below the big black square is the small black triangle. Block C contains a medium yellow triangle.
What is below the small yellow shape? a medium black square or a medium yellow triangle?
medium black square  medium yellow triangle  both of them none of them