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