The impact of the mass media on the public agenda can best be described as its ability to

Is the ability to tell the people what issues to think about

Explanation:

It's how people had no control over what they think or what they believe. Mass media tell them what to be worried about, what to think about, and what to care about. It's an alienation process that happens gradually, and something that is hard to quit.

answer; symbolic interactionism;

answer; gender,race,age,/// (d) all of these;