There are three blocks. Lets call them A, B and C. Block B is below A and block C is below B. Block A contains one medium yellow square. Block B has one medium black square. One medium blue square is also in this block. The medium black square is below the medium blue square. And block C contains a medium blue square and one medium yellow square. Below the medium yellow square is the medium blue square.
Which object is above a medium blue square? the medium yellow square that is in block A or the medium yellow square that is in block C?
the medium yellow square  that is in block A the medium yellow square  that is in block C both of them none of them