There are three blocks, A, B and C. Block B is to the left of A. Block A is above C. Block A contains a medium black square and one medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square. Block B contains one medium yellow square. This block also has a medium blue square. The medium yellow square is below the medium blue square. And block C has two medium blue squares. Medium blue square number one is touching the bottom edge of this block. This shape is below medium blue square number two.
What is to the left of the black thing? a medium blue square which is in block B or a medium blue square which is touching the bottom edge of a block?
medium blue square  which is in block B medium blue square  which is touching the bottom edge of a block  both of them none of them