There are two blocks, A and B. Block A is below B. Block A has a big blue triangle, one small blue square and a small black circle. Above the small blue square and the small black circle is the big blue triangle. The small blue square is to the left of and above the small black circle. Block B has a small black circle. This block also contains one medium blue triangle. To the left of the small black circle there is the medium blue triangle.
Which object is above a small black circle? the square or the medium blue triangle?
the square  the medium blue triangle  both of them none of them