<span>Nixon's Southern Strategy won the support of "southern white" voters, since this allowed the Republican Party to take back these voters who had previously been democratic. </span>
Explanation:
I think he was but I am not exactly sure
D, because it's a full sentence.
Probably the most important change that happened at the time was that C - Women worked jobs that had ben held almost exclusively by men.
Due to the fact that the majority of men, or at least a good portion of them, were on the battlefield in Europe, women had to take over the role in certain key areas that were necessary for the victory of the US.