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