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