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.
Which object is below a small yellow circle? the medium blue square or the big blue square?
the medium blue square  the big blue square  both of them none of them