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