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