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