There are two blocks, A and B. Block A has one medium yellow square. Below block A there is block B with one small black square, a small black triangle and one big blue circle in it. One medium black triangle is also in this block. It is to the left of the big blue circle. It is below the small black triangle.. The small black square is to the left of the black shape which is to the left of the big blue circle. The big blue circle is touching the right edge of this block.. The small black square is near to the small black triangle. It is above the big blue circle.
What is below the yellow object? a medium black triangle or a small black triangle?
medium black triangle  small black triangle  both of them none of them