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