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