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