We have three blocks. We call them A, B and C. Block A contains a small yellow triangle, a medium yellow square and one big black square. The medium yellow square is touching the bottom edge of this block. A medium blue triangle is touching the right edge of this block. It is above, to the right of and touching the big black square. The small yellow triangle is below the big black square and the medium blue triangle. Then, there is block B. It has one medium yellow square, one small blue circle and a big blue circle. To the left of the big blue circle is the small blue circle. The big blue circle is touching the bottom edge of this block. Near to and to the left of the big blue circle there is the medium yellow square. Block C is to the left of block B and block A is below it. It has a small black circle. The small black circle is to the right of a big blue triangle.
What is to the right of the big blue triangle? a big black square or a big blue circle?
big black square  big blue circle  both of them none of them