There are three blocks, A, B and C. One big blue square, one medium black square and one big blue triangle are in block A. The big blue square is touching the right edge of this block. The medium black square is above the big blue triangle and a small blue triangle. The big blue square is to the right of the small blue triangle. Then, we have block B. It has a medium yellow circle. Finally, we have block C. It is to the left of block A and above block B. It has one medium black circle.
Which object is to the right of a medium black circle? the medium yellow circle or the small triangle?
the medium yellow circle  the small triangle  both of them none of them