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