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