There are three blocks. We call them A, B and C. Block C is to the right of and A is below B. Block A has a big blue square and one small yellow circle. Below the small yellow circle is the big blue square. Block B has one small black square and a big black square. The small black square is near to and to the right of the big black square. And block C contains one small yellow circle and one medium blue square. To the right of and above the medium blue square is the small yellow circle.
What is below the big black square? a small yellow circle or a small black square?
small yellow circle  small black square  both of them none of them