We have three blocks. We call them A, B and C. Block A is to the left of block B and above block C. Block A contains a medium blue square, one big yellow triangle and a small black triangle. Above the small black triangle and a big yellow circle there is the medium blue square. The big yellow triangle is touching the bottom edge of this block. The small black triangle is touching the bottom edge of this block. Above the small black triangle and the big yellow triangle is the big yellow circle. Block B contains a medium yellow circle and one medium blue square. This block also contains one big blue circle. The medium yellow circle is below the big blue circle. To the right of and near to the big blue circle there is the medium blue square. Block C has a big blue triangle.
Which object is above a big blue triangle? the small black triangle that is touching the bottom edge of a block or the big yellow triangle?
the small black triangle  that is touching the bottom edge of a block  the big yellow triangle  both of them none of them