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