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