There are three blocks. We call them A, B and C. Block A is above and B is below C. Block A contains a big black circle. Block B contains a small black triangle and a big black square. The small black triangle is touching the bottom edge of this block. This object is below the big black square. And block C contains a small blue circle and one big black circle. The big black circle is touching the right edge of this block. The small blue circle is above and to the left of the big black circle.
What is above the triangle? a big black circle or a square?
big black circle  square  both of them none of them