We have three blocks, A, B and C. Block B is above A and block A is to the right of C. Block A contains a medium yellow circle. The medium yellow circle is touching the right edge of this block. This block also has a medium black circle. The medium yellow circle is to the right of and above the medium black circle. Block B contains a medium yellow triangle. It also contains a small blue square. The small blue square is above and to the right of the medium yellow triangle. And block C has one small blue square.
What is above the shape that is touching the right edge of a block? a medium black circle or a small blue square?
medium black circle  small blue square  both of them none of them