We have three blocks, A, B and C. Block C is to the right of block B and it is to the left of block A. Block A contains a medium black triangle and one small yellow circle. A small black triangle is above and to the right of the medium black triangle. The small yellow circle is touching the right edge of this block. The small black triangle is to the left of and below the small yellow circle. Block B contains a medium yellow square and a small black circle. One medium black square is also touching the bottom edge of this block. A small yellow circle is also in this block. Below the small black circle , the small yellow circle and the medium yellow square there is the medium black square. Above and to the right of the small black circle is the medium yellow square. Block C contains one small black square and one small blue circle. The small black square is near to and below the small blue circle.
What is to the left of the small black square? a small yellow circle or a medium black triangle?
small yellow circle  medium black triangle  both of them none of them