We have three blocks, A, B and C. Block A is to the left of C. Block C is above B. Block A contains a big blue triangle and one medium yellow square. The big blue triangle is touching the bottom edge of this block. It is to the right of the medium yellow square. Block B has two small yellow circles. Small yellow circle number one is to the right of and below small yellow circle number two. A big yellow square is touching the right edge of this block. It is above small yellow circle number one. Block C has one big yellow triangle and a big blue circle. The big yellow triangle is below the big blue circle. The big blue circle is touching the right edge of this block.
What is below the big yellow triangle? a medium yellow square or a big yellow square?
medium yellow square  big yellow square  both of them none of them