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