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