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