There are three blocks, A, B and C. Block A contains a medium yellow square. Block B is above block A. It has one medium yellow square. Above a small yellow triangle is a medium black square. The small yellow triangle is to the left of and below the medium yellow square. Finally, there is block C to the left of block B. It has a big black triangle and a small black circle. The big black triangle is touching the bottom edge of this block. This object is to the right of the small black circle.
What is to the left of the medium black square? a circle or a small yellow triangle?
circle  small yellow triangle  both of them none of them