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