There are three blocks, A, B and C. Block A contains one small blue circle and one big yellow triangle. The small blue circle is touching the bottom edge of this block. A medium yellow circle is touching the right edge of this block. It is above the big yellow triangle. Below and near to the big yellow triangle there is the small blue circle. It is below the medium yellow circle. Block B is to the left of block A. It contains one small blue triangle. Finally, there is block C to the right of block A. It contains one big blue circle and one big black square. Near to and to the right of the big blue circle there is a medium yellow circle. This object is below the big black square.
What is below the big square? a medium yellow circle or a big yellow triangle?
medium yellow circle  big yellow triangle  both of them none of them