There are three blocks, A, B and C. There are one small black square, one small yellow triangle and one medium blue triangle in block A. The small black square is near to and below the small yellow triangle which is to the left of and above the medium blue triangle. The medium blue triangle is touching the bottom edge of this block. Then, there is block B with a big blue circle in it. Finally, below block A we have block C. It is below block B. It has two medium black triangles. Below and to the left of medium black triangle number two there is medium black triangle number one. It also contains a medium yellow circle.. The medium yellow circle is to the left of the triangle which is below medium black triangle number two.
What is below the big thing? a small yellow triangle or a medium black triangle?
small yellow triangle  medium black triangle  both of them none of them