There are three blocks, A, B and C. Block A is above block C and below block B. Block A has a medium black square and a medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square. Block B contains one medium blue square. Block C contains two medium yellow squares. Below medium yellow square number two is medium yellow square number one.
Which object is below a black thing? the medium blue square which is in block A or the medium blue square that is in block B?
the medium blue square  which is in block A the medium blue square  that is in block B both of them none of them