There are three blocks. Lets call them A, B and C. Block A contains a big black triangle. Above block A there is block B which has one medium black circle, one small blue circle and one medium blue circle. To the right of the small blue circle is the medium black circle. To the right of a small black triangle is the medium blue circle. To the left of the medium blue circle is the small blue circle. Above and to the left of the circle which is to the right of the small black triangle is the medium black circle. Finally, there is block C. It is above block A. It contains one big black circle. This block also contains a big black triangle. The big black triangle is to the right of a medium yellow circle and the big black circle. The medium yellow circle is touching the bottom edge of this block.
Which object is above a big black triangle? the medium black circle or the medium yellow circle that is touching the bottom edge of a block?
the medium black circle  the medium yellow circle  that is touching the bottom edge of a block  both of them none of them