There are three blocks. We call them A, B and C. Block A has a medium blue square and one medium black square. Below the medium black square is the medium blue square. Above block A is block B. It contains one medium blue square. Below block A there is block C with one medium blue square in it. A medium yellow square is touching the bottom edge of this block. This object is below the medium blue square.
Which object is above a medium square? the medium blue square that is in block C or the medium blue square that is in block A?
the medium blue square  that is in block C the medium blue square  that is in block A both of them none of them