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