There are three blocks. We call them A, B and C. Block A contains one small blue circle. Then, we have block B with a small black circle and a big black square in it. One big black circle is also touching the right edge of this block. A medium black circle is also in this block. To the left of, above and touching the big black circle there is the medium black circle. The big black square is to the left of, above and near to the big black circle. There is also a big yellow square touching the bottom edge of this block. Finally, to the left of block B we have block C which is below block A. It has a big black triangle. A medium blue triangle is to the left of the big black triangle.
Which object is to the left of a big black triangle? the medium blue triangle or the small black circle?
the medium blue triangle  the small black circle  both of them none of them