There are three blocks, A, B and C. Block C is to the left of A and block A is above B. Block A contains one big blue circle. Block B has a small blue triangle, a small black circle and a small yellow triangle. The small black circle is to the right of and above the small yellow triangle. This shape is touching the top edge of this block. The small blue triangle is to the right of the small yellow triangle. And block C has a small black square, a medium blue triangle and one medium yellow circle. To the left of the medium blue triangle and the medium yellow circle is the small black square. The medium blue triangle is near to the medium yellow circle.
Which object is to the left of a big object? the small yellow triangle or the medium blue triangle?
the small yellow triangle  the medium blue triangle  both of them none of them