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