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