There are three blocks. Lets call them A, B and C. Blocks B and A are above C. Block A has a small blue square. Block B has a medium black square. Block C has two medium black triangles. This block also has one small blue triangle. It is above a big blue triangle. Medium black triangle number one is touching the bottom edge of this block. A big blue circle is above and near to the small blue triangle. Medium black triangle number two is touching the bottom edge of this block. It is to the left of the big blue triangle. Medium black triangle number one is to the left of the big blue triangle.
Which object is below a medium black square? the big blue circle or the big blue triangle?
the big blue circle  the big blue triangle  both of them none of them