There are three blocks, A, B and C. Block C is below B and block B is to the right of A. Block A contains a small blue circle. Block B contains a small black triangle. There is also a big blue triangle touching the bottom edge of this block. Near to the small black triangle there is the big blue triangle. And block C contains a medium blue circle. One big black triangle is also in this block. Near to the big black triangle is the medium blue circle.
What is below the small black triangle? a big black triangle or a small blue circle?
big black triangle  small blue circle  both of them none of them