We have three blocks. Lets call them A, B and C. Block C is to the right of A and block A is above B. Block A contains one small blue square. Near to the small blue square there is a medium yellow square. Block B contains one small black circle and a small yellow circle. The small black circle is near to and to the left of the small yellow circle. And block C has a medium yellow circle, a medium black triangle and a small yellow circle. A big yellow triangle is also touching the bottom edge of this block. The medium yellow circle is to the left of and below the small yellow circle. The medium black triangle is below the small yellow circle which is to the left of the big yellow triangle. To the left of and above the big yellow triangle is a medium blue circle.
Which object is to the left of a small yellow circle? the small blue square or the medium black triangle?
the small blue square  the medium black triangle  both of them none of them