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