How do contractions enhance informal writing?

Contractions enhance informal writing by creating a conversational tone, which makes the text feel more relatable and accessible to the reader. This choice reflects the natural way people speak in everyday conversation, where contractions like "can't," "didn't," and "you're" are commonly used. This informal style helps to establish a connection between the writer and the reader, making the writing feel more personal and engaging.

In contrast, the other choices do not accurately describe how contractions function in informal writing. For instance, making text more difficult to read does not align with the purpose of contractions; instead, they often make the language flow more smoothly. Similarly, introducing complex vocabulary is at odds with the simplicity that contractions bring to informal contexts. Lastly, while contractions can affect how punctuation is handled, they do not eliminate the need for punctuation in writing. Rather, they allow for a more fluid and relaxed style, which is characteristic of informal text.