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