We have three blocks, A, B and C. Block C is to the left of A. Block A is to the left of B. Block A has one big yellow triangle. Block B contains one small black square. And block C has a medium blue triangle and a big blue circle. A small yellow square is below and to the left of the medium blue triangle. Above the big blue circle is the medium blue triangle. This block also has a medium yellow triangle. Above the big blue circle there is the medium yellow triangle. The big blue circle is touching the right edge of this block. Above and to the right of the medium blue triangle is the medium yellow triangle.
What is to the left of the big yellow triangle? a small black square or a small yellow square?
small black square  small yellow square  both of them none of them