We have three blocks. We call them A, B and C. Block A is to the left of blocks C and B. Block A contains one medium yellow square, one medium blue square and one medium black square. The medium yellow square is touching the bottom edge of this block. This shape is below the medium black square and the medium blue square. The medium blue square is below the medium black square. Block B contains one medium yellow square. Block C has one medium blue square. One medium black square is also touching the bottom edge of this block. The medium black square is below the medium blue square.
Which object is to the left of 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