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