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