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