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