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