The role of grammar in language is to ensure what?

The correct response to the question about the role of grammar in language is that it ensures users can understand each other effectively. Grammar provides a structured framework that governs the rules for combining words into phrases and sentences. This structure is essential for clarity and comprehension in communication, as it helps speakers and writers convey their thoughts in a manner that others can easily interpret.

Without a common understanding of grammatical rules, messages could become ambiguous or misleading, making effective communication difficult. While other options present aspects of language use, they do not capture the primary function of grammar in facilitating mutual understanding. For instance, not every speaker may use the same dialect, and while words typically have specific meanings, language is elastic, allowing for variations in usage depending on context. Moreover, while formatting reports is relevant in certain contexts, it falls outside the core function of grammar in everyday communication.