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