We have three blocks. We call them A, B and C. Block C is to the right of B. Block B is to the left of A. Block A has one small yellow triangle. Block B contains one medium black triangle. Block C contains one medium yellow square, one big blue triangle and a big black circle. The medium yellow square is touching the bottom edge of this block. The big blue triangle is to the right of the big black circle. The medium yellow square is below the triangle which is to the right of the big black circle. It is to the right of and below the big black circle.
What is to the right of the medium black triangle? a black circle or a small triangle?
black circle  small triangle  both of them none of them