There are three blocks. Lets call them A, B and C. Block C is below B and block B is above A. Block A contains one small blue circle. Block B has one small blue triangle and a small black square. The small blue triangle is below the small black square. And block C has a medium yellow circle. This block also has a medium blue square. It is touching the bottom edge of this block. The medium yellow circle is above the medium blue square.
What is below the triangle? a black square or a small blue circle?
black square  small blue circle  both of them none of them