We have three blocks, A, B and C. Block C is below block B and to the right of block A. Block A has one small blue square and one medium blue circle. Below a small blue triangle is the medium blue circle. To the left of the small blue triangle there is the small blue square. It is to the right of the blue object which is below the small blue triangle. Block B has one big blue triangle and a medium yellow square. The big blue triangle is above and far from the medium yellow square. The medium yellow square is touching the right edge of this block. And block C contains one medium yellow circle, one medium yellow square and a big black square. To the left of and above the big black square there is the medium yellow circle. The medium yellow square is above and to the right of the big black square.
What is below the thing that is touching the right edge of a block? a big blue triangle or a medium yellow square?
big blue triangle  medium yellow square  both of them none of them