There are three blocks, A, B and C. Block B is below A and block C is to the left of B. Block A has one medium yellow circle, one small black circle and a small yellow circle. To the left of the small yellow circle is the small black circle. The medium yellow circle is touching the bottom edge of this block. It is to the right of the small black circle and the small yellow circle. Block B contains a big yellow circle. And block C has a medium yellow square.
Which object is above a yellow circle? the small black circle or the yellow square?
the small black circle  the yellow square  both of them none of them