There are three blocks. We call them A, B and C. Block A contains 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. Block B is to the right of block A. It contains a medium yellow square. Finally, we have block C to the right of block B. It has a medium black square.
What is to the left of the yellow shape? a black object or a medium blue square?
black object medium blue square  both of them none of them