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