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