Which of the following is an example of how diction can affect tone?

The choice illustrating how diction affects tone effectively highlights the relationship between language and the atmosphere of a piece. When technical jargon is employed, it often signifies professionalism and expertise, thereby establishing a formal tone. This is particularly relevant in contexts such as academic writing, legal documents, or specialized fields, where precise, formal language communicates authority and seriousness.

While the other options touch on aspects of writing style and structure, they do not relate to the direct impact of diction on tone as clearly. The second option relates to sentence structure rather than word choice specifically affecting mood or feeling. The third option discusses how language might evoke emotions but doesn't connect as directly to the concept of diction in the same way technical jargon does. The fourth option interprets complexity in sentence structure but does not center on the selection of words in a way that shapes the tone. Thus, the emphasis on the type of language used in the first choice sharply illustrates how diction plays a pivotal role in establishing the tone of a text.