There are three blocks. We call them A, B and C. Block A has one medium yellow square. Above block A we have block B. It has a medium blue square and a medium yellow square. The medium blue square is below the medium yellow square. To the left of block B there is block C which has a medium black square. This block also has a medium yellow square. The medium black square is touching the bottom edge of this block. This shape is below the medium yellow square.
Which object is to the left of a medium square? the medium yellow square that is in block A or the medium yellow square which is in block B?
the medium yellow square  that is in block A the medium yellow square  which is in block B both of them none of them