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.
What is below the small black shape? a small yellow triangle or a medium shape?
small yellow triangle  medium shape both of them none of them