We have three blocks. We call them A, B and C. Block A contains one big black square. Then, there is block B. It has a big yellow triangle and one big blue circle. A big yellow circle is to the right of and below the big yellow triangle. It is below the big blue circle. Finally, we have block C which is above block B. Block A is below it. It contains a medium yellow square, one small blue square and one medium black triangle. The medium yellow square is touching the bottom edge of this block. It is below the medium black triangle. It is below and to the left of the small blue square.
Which object is below a medium yellow square? the big black square or the big yellow triangle?
the big black square  the big yellow triangle  both of them none of them