Correct Answer: D

The least relevant example of social advertisement is: Election manifesto of a political party highlighting what issues they will work on.

Key Points:

Advertisements are an important part of our social and cultural life today. Social advertisements are advertisements made by State or private agencies that carry a larger message for society. Examples of social advertisements include display of hoardings on Swachh Bharat Mission, distribution of pamphlets on female infanticide, and newspaper advertisements on adverse effects of smoking.

Thus, the election manifesto of a political party is the least relevant example of social advertisement.

Additional Information:

An election manifesto is a document outlining a political party's policies and plans for the future if they come into power. A social advertisement, on the other hand, promotes a social message or cause. While election manifestos may have some elements of social advertising, they are not social advertisements in the traditional sense — they are more focused on political promises and goals. Election manifestos are also targeted specifically towards voters, while social advertisements are targeted towards the general public. In conclusion, an election manifesto is a political document while social advertisements are a form of marketing tool. The purpose, audience, and focus of the two are different.