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