This is an action taken to support or oppose specific legislation at the national, state, or local level, and it could include, for example, contacting a member of Congress, a state legislator, or a city councilperson to request his or her sponsorship or vote in favor of or against a specific bill. a. Political campaign activityb. Advocacyc. Lobbyingd. Cold-calling

c. Lobbying

Explanation:

Lobbying can described as the act of persuasion to influence a decision or legislation to go in their favor. Lobbying usually involves a group of people or an individual engaging in activities in an attempt to influence the decision of a government or the legislative arm, in order to have their interest represented by such decisions and legislations.  

The example stated in the question, whereby a member of congress or a state legislator is contacted to seek their sponsorship or vote in favor of or against a specific bill is regarded as an act of lobbying.

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