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