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