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