There are three blocks, A, B and C. There are a big black triangle, one medium black square and one small blue triangle in block A. To the right of a small black square there is the big black triangle. To the right of the small black square which is above the small blue triangle there is a medium yellow circle. To the left of a big yellow square is the medium black square. This object is touching the small blue triangle. Then, there is block B with a small yellow circle in it. There is also a medium black square in this block. The medium black square is near to and above the small yellow circle. Finally, we have block C which is to the right of block A and block B is below it. It contains one small yellow square. A medium blue circle is near to and below the small yellow square. A big blue square is touching the right edge of this block. This shape is to the right of the small yellow square.
What is to the left of the small yellow square? a small yellow circle or a medium yellow circle?
small yellow circle  medium yellow circle  both of them none of them