There are three blocks. We call them A, B and C. Block A is above and C is below B. Block A contains two small black triangles. One small black square is also touching the right edge of this block. A big yellow square is also in this block. Small black triangle number one is to the left of small black triangle number two and the small black square. This object is below and near to the big yellow square. Block B contains a medium black circle, one big yellow square and a small blue circle. One big blue triangle is also in this block. The medium black circle is to the right of the big yellow square. A big yellow triangle is to the right of the small blue circle. The big yellow square is touching the bottom edge of this block. Above the big yellow square there is the big blue triangle. The medium black circle is touching the bottom edge of this block. The big yellow triangle is touching the right edge of this block. This object is above and far from the big yellow square. Block C has one small blue square and one small yellow triangle. Below, near to and to the right of the small yellow triangle is the small blue square.
Which object is above a big yellow square? the big blue triangle or the medium black object that is touching the bottom edge of a block?
the big blue triangle  the medium black object that is touching the bottom edge of a block  both of them none of them