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