We have three blocks, A, B and C. Block B is to the right of block C and to the left of block A. Block A contains a small yellow triangle. Block B has a small blue square and a medium black circle. There is also a medium black square in this block. Above the small blue square and the medium black circle there is the medium black square. And block C has a medium blue triangle, one small blue triangle and one big black triangle. Near to, to the left of and above the big black triangle there is the medium blue triangle.
What is to the right of the medium blue triangle? a medium black square or a circle?
medium black square  circle  both of them none of them