There are three blocks. We call them A, B and C. Block A has one medium yellow circle and a big blue triangle. The medium yellow circle is to the right of the big blue triangle. Then, we have block B with a small black circle and one big black triangle in it. The small black circle is near to a medium black square. The big black triangle is touching the bottom edge of this block. The small black circle is above and to the right of the big black triangle. The medium black square is touching the right edge of this block. Finally, above block B we have block C which is above block A. It contains one big yellow square and one medium yellow circle. The big yellow square is to the right of the medium yellow circle.
What is below the big yellow square? a big object which is touching the bottom edge of a block or a medium yellow circle?
big object which is touching the bottom edge of a block  medium yellow circle  both of them none of them