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