There are three blocks, A, B and C. Block A is below block C and to the right of block B. Block A contains a big blue circle, a medium yellow triangle and one small black triangle. There is also one small black square in this block. The big blue circle is touching the bottom edge of this block. Below the small black triangle and the small black square there is the medium yellow triangle. The small black triangle is above and near to the small black square. Below the small black square there is the big blue circle. Block B has two medium black triangles. To the left of a big blue square there is medium black triangle number one. Medium black triangle number two is below the big blue square. Above medium black triangle number two there is medium black triangle number one. Medium black triangle number two is touching the bottom edge of this block. Block C contains a small yellow square.
What is below the small yellow square? a circle which is touching the bottom edge of a block or a small black triangle?
circle  which is touching the bottom edge of a block  small black triangle  both of them none of them