We have three blocks, A, B and C. Block B is above A. Block C is to the left of B. Block A contains a medium black square and one medium yellow square. The medium black square is below the medium yellow square. Block B contains one medium yellow square. And block C has a medium black square and a medium yellow square. Below the medium yellow square there is the medium black square.
Which object is below a medium yellow 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