There are three blocks, A, B and C. Block B is to the left of A. Block A is below C. Block A has one medium yellow square. Block B has one small blue square. And block C contains one medium black square and one medium black circle. To the right of the medium black circle and the medium black square is a big yellow triangle. To the right of the medium black circle is the medium black square.
Which object is to the right of a medium black thing? the medium black square or the medium yellow square?
the medium black square  the medium yellow square  both of them none of them