We have three blocks. We call them A, B and C. There is a medium black circle in block A. Block B is to the right of block A. It has one small black circle. This block also has a small blue triangle. The small black circle is touching and to the left of the small blue triangle. The small blue triangle is touching the right edge of this block. Finally, we have block C. It is below block B. It has one big blue square, a small yellow triangle and one small black square. It also contains a small black circle. To the right of, near to and below the small black circle is the big blue square. Near to the small black square is the small yellow triangle. The small black square is to the right of the small black circle.
What is below the shape that is touching the right edge of a block? a small black square or a medium black circle?
small black square  medium black circle  both of them none of them