Final answer:
Attaining credibility can be complex for speakers due to variation in expertise, audience perception, and the need to establish credibility beyond work experience.
Step-by-step explanation:
Attaining credibility can be complex for speakers due to several factors.
First, a speaker may have more credibility on one topic than on another, depending on their expertise and experience.
Second, credibility exists in the mind of the audience, meaning that different individuals may perceive a speaker's credibility differently.
Third, while work experience can help establish credibility, it is not the only factor.
Speakers can also enhance their credibility by sharing personal experiences and targeting emotional concerns to connect with their audience.