There are two blocks. We call them A and B. Block A contains one medium blue square. To the left of block A is block B which has two medium blue squares and two other medium black squares. Medium blue square number one is touching the bottom edge of this block. Medium black square number one is below medium blue square number two. Below medium blue square number two is medium black square number two. Medium blue square number one is below medium black square number one , medium black square number two and medium blue square number two.
Which object is to the left of a medium blue square? medium black square number two or medium black square number one?
medium black square  number two medium black square  number one both of them none of them