There are three blocks. We call them A, B and C. Block A contains one small yellow square. Then, there is block B. It contains two small yellow triangles. A medium black square is to the right of small yellow triangle number one and small yellow triangle number two. A medium blue square is touching the right edge of this block. A big blue circle is touching the left edge of this block... The medium black square is below the medium blue square. Finally, we have block C which is to the left of block B and above block A. It contains a medium yellow circle and one big black square. One medium black triangle is also in this block. Above and to the right of the medium yellow circle which is below the big black square is the medium black triangle.
What is below the big black square? a square that is touching the right edge of a block or a medium yellow circle?
square  that is touching the right edge of  a block  medium yellow circle  both of them none of them