There are three blocks, A, B and C. Block A has two medium yellow squares. There is also a big blue circle in this block. Medium yellow square number one is to the left of the big blue circle. Medium yellow square number two is to the left of the big blue circle. Medium yellow square number one is near to the medium yellow square number two. Then, there is block B. It has a big yellow circle. Finally, below block B we have block C which is below block A. It contains one medium black triangle. To the left of, above and near to a big yellow triangle is the medium black triangle. The big yellow triangle is touching the right edge of this block. This block also contains a big blue circle. It is to the left of the big yellow triangle.
What is above the shape that is touching the right edge of a block? a black object or a medium yellow square?
black object medium yellow square  both of them none of them