~ (A • C) and ~A • ~C In comparing the two main operator columns, row by row, we…

~ (A • C) and ~A • ~C
In comparing the two main operator columns, row by row, we see that the truth-values on each of the rows are
?      a) identical
?      b) opposite
?      c) at least one line where both are True
?      d) no lines where both are True
?      Thus, these two statements are __________