There are three blocks, A, B and C. Block B is above blocks C and A. Block A contains a medium black square. Block B contains a medium black square and one medium blue square. The medium black square is touching the bottom edge of this block. This shape is below the medium blue square. Block C contains a medium black square and a medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square.
Which object is below a medium black square? the medium blue square that is in block C or the medium blue square that is in block B?
the medium blue square  that is in block C the medium blue square  that is in block B both of them none of them