Considering the socio-cultural context, the advertisement from a political action committee intended to attract support from the public by promoting a position is a type of Public Service Advertising.
This is a form of advertisement that encourages a cause or initiative instead of a product.
Government, agencies, or non-governmental organizations usually use Public Service Advertising to educate and inform the people.
Therefore, given that the advertisement is similar to the Mayors, Against Illegal Guns advertisement, this is a form of Public Service Advertising.
Hence, in this case, it is concluded that the correct answer is "Public Service Advertising."
Learn more about Public Service Advertising here: https://brainly.com/question/9655926