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