There are three blocks, A, B and C. Two medium yellow squares are in block A. Medium yellow square number one is touching the bottom edge of this block. This object is below medium yellow square number two. Then, there is block B which contains one medium black square. Finally, we have block C above block A. Block B is to the left of it. It has a medium black square. Below the medium black square is a medium yellow square.
Which object is to the left of a medium yellow 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