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