We have three blocks, A, B and C. Block B is to the right of and C is above A. Block A contains one small blue circle and a small yellow square. A small blue square is above and to the left of the small yellow square. Near to and to the left of the small yellow square there is the small blue circle. Block B contains a small black triangle. And block C has two medium black triangles. Medium black triangle number one is touching the right edge of this block. One big blue square is also in this block. A medium blue square is touching the bottom edge of this block. Above medium black triangle number two and the medium blue square is the big blue square.
What is below the object that is touching the bottom edge of a block? a big square or a small circle?
big square  small circle  both of them none of them