There are three blocks. We call them A, B and C. Block A has one medium blue circle and a medium yellow circle. The medium blue circle is touching the right edge of this block. It is above the medium yellow circle. Below block A there is block B. It contains a big yellow square, one medium black square and a big black square. The big yellow square is above the big black square and the medium black square.. To the left of the big black square is the medium black square. Below block B there is block C which contains a medium black triangle and one big black circle. The medium black triangle is to the left of the big black circle.
What is above the big yellow square? a big black circle or a medium blue circle that is touching the right edge of a block?
big black circle  medium blue circle  that is touching the right edge of  a block  both of them none of them