We have three blocks, A, B and C. One medium black square is in block A. Below the medium black square there is a medium blue square. Block B is to the right of block A. It has one medium black square. Below block B there is block C with a medium blue square in it. A medium yellow square is touching the bottom edge of this block. It is below the medium blue square.
Which object is below a medium black square? the medium blue square that is in block A or the medium blue square that is in block C?
the medium blue square  that is in block A the medium blue square  that is in block C both of them none of them