What could be inferred about the effectiveness of a slogan in advertising?

The effectiveness of a slogan in advertising can be inferred from its capacity to be memorable and persuasive. A well-crafted slogan captures the essence of a brand's message in a succinct manner, making it easy for consumers to remember. The simplicity and catchiness of a slogan often enhance its persuasive power, influencing consumer attitudes and behaviors positively towards a product or service. This ability to stick in the minds of audiences means that effective slogans can lead to increased brand recognition and loyalty.

The other aspects presented in the question do not accurately reflect the general characteristics of effective slogans. For instance, while a slogan is significant in a campaign, it is not always the exclusive focus, as other elements play crucial roles as well. Additionally, effective slogans tend to be simple rather than ignored, as they are designed to engage audiences rather than be overlooked. Lastly, the language used in slogans is typically straightforward and engaging, rather than complex, as clarity often aids in their memorability and effectiveness.