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