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