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.
Which object is to the right of a big black square? the medium black triangle or the small yellow object?
the medium black triangle  the small yellow object both of them none of them