There are three blocks. We call them A, B and C. There are two medium black squares in block A. Medium black square number two is below a medium yellow square.. Below medium black square number two and the medium yellow square there is medium black square number one. Block B is above block A. It has one medium blue square. Finally, we have block C. It is to the right of block A. It contains one medium black square.
Which object is to the left of a medium black square? the medium yellow square or the medium blue square?
the medium yellow square  the medium blue square  both of them none of them