We have three blocks, A, B and C. Block A is to the left of B and block C is below A. Block A has a medium blue square and a medium black square. This block also contains a medium yellow square. This shape is below the medium black square. The medium blue square is below the medium yellow square and the medium black square. Block B has one medium yellow square. Block C has two medium yellow squares. Medium yellow square number one is below a medium blue square and medium yellow square number two. This block also contains one medium black square. The medium black square is below medium yellow square number one. This shape is below the medium blue square. This object is below medium yellow square number two.
Which object is below a medium black square? the medium yellow square that is in block B or the medium yellow square which is in block A?
the medium yellow square  that is in block B the medium yellow square  which is in block A both of them none of them