There are two blocks. We call them A and B. Block A contains a medium black square. Below block A we have block B. It has two medium blue squares and two other medium yellow squares. Medium blue square number one is touching the bottom edge of this block. Medium blue square number two is below medium yellow square number one. Below medium yellow square number two there is medium yellow square number one. Medium blue square number one is below medium blue square number two , medium yellow square number one and medium yellow square number two.
What is below the black shape? a medium yellow square or a medium blue square that is touching the bottom edge of a block?
medium yellow square  medium blue square  that is touching the bottom edge of a block  both of them none of them