We have three blocks, A, B and C. Block A contains one medium blue square. Block B is to the right of block A. It has one big blue triangle and a big blue square. The big blue triangle is touching the right edge of this block. This shape is above, to the right of and far from the big blue square. Finally, there is block C which is to the right of block B. It contains a big black square, one small black circle and a big blue triangle. A medium black triangle is to the right of and near to the small black circle which is below the big blue triangle. A medium black circle is to the left of the big blue triangle. The big blue triangle is touching the right edge of this block. The big black square is touching the bottom edge of this block. This object is below and to the right of the medium black circle.
Which object is to the left of a big black square? the medium blue square or the small black circle?
the medium blue square  the small black circle  both of them none of them