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