There are two blocks, A and B. There are a small blue square and one medium blue circle in block A. The small blue square is above the medium blue circle. Block B is to the left of block A. It has one medium black triangle, a big blue square and a big black circle. Below the big blue square which is above and to the right of the big black circle there is the medium black triangle.
What is above the big black circle? a medium blue circle or a big blue square?
medium blue circle  big blue square  both of them none of them