Answer: They have less control over content of campaign ads.
Step-by-step explanation:
Traditional media selling of campaign ads differ from the selling of political ads by PACs with respect to regulation by the FCC as they have less control over content of campaign ads.
In the campaign advertisement, it should be noted that the traditional media have less control over the content of the campaign advertisements when compared to the sale of m political advertisements by PACs. It should be noted that the reason for this is because PACs has been given more freedom to th political ads by FCC.
Therefore, the correct option is D.