There are two blocks, A and B. A big black circle is in block A. Block B is below block A. It contains a small blue circle. The small blue circle is touching the right edge of this block. This block also has one big black circle. To the left of and below the big black circle there is a medium yellow triangle. A small yellow square is near to and below the big black circle. This shape is to the left of the small blue circle. The small blue circle is above the big black circle.
What is above the small circle? a big black circle or a small yellow square?
big black circle  small yellow square  both of them none of them