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