We have three blocks, A, B and C. Block B is to the right of A and block C is below B. Block A contains a medium yellow square. Block B contains a medium blue square. There is also one medium black square in this block. Below the medium blue square there is the medium black square. And block C contains one medium blue square and one medium yellow square. This block also contains a medium black square. The medium blue square is below the medium yellow square. Below the medium yellow square and the medium blue square there is the medium black square.
Which object is to the left of a medium black square? the medium yellow square that is in block C or the medium yellow square that is in block A?
the medium yellow square  that is in block C the medium yellow square  that is in block A both of them none of them