There are three blocks, A, B and C. Block C is above A and block A is below B. Block A has one small yellow circle. Block B has a medium blue triangle. And block C contains one medium yellow square, a small black square and one medium black square. It also contains one big black circle. The medium yellow square is below the small black square. Above and to the left of the medium black square which is to the right of, below and near to the big black circle there is the small black square.
Which object is above a small yellow circle? the small black square or the medium black square?
the small black square  the medium black square  both of them none of them