We have three blocks, A, B and C. Blocks A and B are to the left of C. Block A has a medium yellow square and a small black circle. Below and to the right of the small black circle is the medium yellow square. Block B contains a small black circle and a medium black square. A medium blue square is to the left of and far from the medium black square. It is below the small black circle. Block C contains one big blue square and a medium blue triangle. Below the medium blue triangle is a small blue square. The big blue square is to the left of and above the medium blue triangle.
Which object is to the left of a big object? the medium black square or the small blue square?
the medium black square  the small blue square  both of them none of them