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