There are three blocks, A, B and C. A big black triangle and a big black circle are in block A. Near to and below the big black circle is a small black square. Near to, above and to the right of the big black circle is the big black triangle. Block B is below block A. It contains one small black triangle. Below block A there is block C. It has one big yellow triangle.
What is above the yellow shape? a big black triangle or a small black triangle?
big black triangle  small black triangle  both of them none of them