There are three blocks, A, B and C. There is a small black triangle in block A. Block B is above block A. It has a small blue triangle and one medium yellow circle. To the right of, above and near to the medium yellow circle is a big blue circle. Finally, there is block C which is to the left of block B. It contains one medium blue square and a medium yellow square. A medium blue triangle is above the medium blue square which is to the right of the medium yellow square. To the left of and above the medium blue square is a small blue circle. It is to the right of the medium yellow square.
What is to the right of the medium yellow square? a big blue circle or a medium blue square?
big blue circle  medium blue square  both of them none of them