What kind of appeal is likely used when a politician emphasizes support from a popular leader to gain approval?

The correct answer is based on the concept of leveraging the influence and reputation of a popular leader to gain support. This technique is categorized under an appeal to prestige, which involves indicating that because a respected and well-liked figure endorses a politician or their policies, they must be worthy of approval themselves.

By drawing attention to this association with a prominent leader, the politician aims to enhance their own credibility and persuade potential supporters by suggesting that following the leader’s example is a wise choice. This strategy capitalizes on the psychological effect that endorsements from admired figures can have on public perception, often leading individuals to align their views with those they respect.

It is important to differentiate this from other forms of appeal that may not utilize the same level of authority or respect, which is why the other options like appeal to flattery or appeal to prejudice do not fit in this context.