There are two blocks, A and B. Block A is to the right of B. Block A has one medium yellow square. Below a medium black square and the medium yellow square is a medium blue square. Below the medium yellow square is the medium black square. Block B contains two medium black squares. Medium black square number one is below medium black square number two.
Which object is to the left of a medium black square? the blue shape or the medium yellow square?
the blue shape the medium yellow square  both of them none of them