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