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