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