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