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