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