There are three blocks, A, B and C. Block A has a big blue circle. This block also has a small yellow square. To the left of the small yellow square is the big blue circle. The small yellow square is touching the right edge of this block. Block B is to the left of block A. It has a medium blue square, a medium black circle and one small black square. The medium blue square is touching the bottom edge of this block. This block also has a small black circle. The medium blue square is below the small black circle. To the right of the small black circle there is the small black square. The medium black circle is to the right of the small black circle. To the left of the circle which is to the right of the small black circle is the medium blue square. It is below the small object which is to the right of the small black circle. Finally, there is block C to the right of block A. It contains one medium black triangle.
What is to the right of the medium blue square? a yellow square that is touching the right edge of a block or a medium black triangle?
yellow square  that is touching the right edge of  a block  medium black triangle  both of them none of them