We have three blocks, A, B and C. Block A contains a medium yellow circle. Below block A is block B which has one small yellow circle and one medium black square. The small yellow circle is to the left of the medium black square. Finally, there is block C below block A. It contains a medium black circle. There is also a small black triangle touching the bottom edge of this block. Below and to the left of the medium black circle there is the small black triangle.
Which object is to the left of a medium black circle? the medium yellow circle or the medium black square?
the medium yellow circle  the medium black square  both of them none of them