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