There are three blocks, A, B and C. One medium yellow circle is in block A. A medium blue triangle is near to the medium yellow circle. To the right of block A is block B with a big black triangle and one big blue circle in it. The big black triangle is above the big blue circle. Finally, there is block C below block B. It contains a medium yellow circle.
What is below the black thing? a medium yellow circle or a big blue circle?
medium yellow circle  big blue circle  both of them none of them