There are three blocks, A, B and C. Block A has three medium blue squares. Medium blue square number one is below medium blue square number two and medium blue square number three. Medium blue square number two is below medium blue square number three. Block B is above block A. It has a medium black square. Finally, there is block C to the right of block A. It contains a medium black square.
Which object is to the left of a medium black 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