We have two blocks, A and B. Block A is to the left of B. Block A has a medium blue square and a medium black square. Below the medium black square there is the medium blue square. Block B contains two medium blue squares. Medium blue square number one is below a medium black square. Below the medium black square is medium blue square number two. One medium yellow square is also touching the bottom edge of this block. The medium yellow square is below medium blue square number one , medium blue square number two and the medium black square.
Which object is below a medium black square? medium blue square number one or the medium blue square that is in block A?
medium blue square  number one the medium blue square  that is in block A both of them none of them