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