Final answer:
Repeating what clients say during conversations is called repetition, which is a key rhetorical device in professional communication that emphasizes points, shows empathy, and ensures understanding.
Step-by-step explanation:
When talking to clients, repeating what they say is referred to as repetition. This technique can serve various purposes, such as ensuring understanding, showing empathy, or emphasizing a point. In professional communication, repetition is also a powerful rhetorical device, often used alongside others such as parallelism and rhetorical questions to enhance the effectiveness of speech or writing. Supporting claims with convincing evidence, through quoting, summarizing, or paraphrasing expert opinions, relating anecdotes or using statistics, are essential components of valid arguments. In narrative and other forms of writing, repeated words or phrases, termed refrain, contribute to emphasizing themes, creating continuity, and making the text more persuasive and memorable.