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