We have three blocks, A, B and C. Block A has a small black square and a small yellow square. Below and to the left of the small yellow square there is the small black square. Then, we have block B with a medium black circle, one big yellow triangle and a big black square in it. There is also one medium yellow circle touching the right edge of this block. The big black square is below and to the left of the medium yellow circle. It is touching the bottom edge of this block.. To the left of the square which is below the medium yellow circle there is the medium black circle. The big yellow triangle is touching the right edge of this block. This shape is below the medium yellow circle. It is to the right of the big black square. To the right of block A and below block B there is block C which contains a big yellow circle, one small black triangle and a medium blue circle. A small blue circle is also in this block. The medium blue circle is to the right of the small blue circle. It is touching the right edge of this block. The big yellow circle is touching the bottom edge of this block. Near to and below the blue shape which is to the right of the small blue circle there is the small black triangle. The big yellow circle is below the small black triangle. It is to the left of the medium blue circle.
What is below the big yellow triangle? a medium blue circle or a medium black circle?
medium blue circle  medium black circle  both of them none of them