There are three blocks, A, B and C. Block B is to the left of block C and above block A. Block A contains one small blue circle and one small black triangle. To the right of a big black triangle and the small black triangle there is the small blue circle. The big black triangle is touching the bottom edge of this block. This object is below the small black triangle. Block B contains a big black square. Block C has one big yellow square. The big yellow square is touching the bottom edge of this block. It is near to and to the right of a small yellow circle.
What is below the big black square? a small black triangle or a small yellow circle?
small black triangle  small yellow circle  both of them none of them