Concept:Procedural knowledge is knowing how to perform a task or skill. It focuses on the process of doing rather than just understanding facts.Explanation:This type of knowledge is practical and goal‑oriented. In language learning, procedural knowledge means using grammar rules in real communication. It is not about memorizing rules alone. Instead, it helps learners automatically apply grammar while speaking or writing. For example, when someone speaks correctly without pausing to think about rules, they are using procedural knowledge. It bridges the gap between knowing a rule and using it effectively. Therefore, procedural knowledge enables learners to apply grammar rules in real‑time conversation and writing tasks.Answer:C. apply the rules of grammar in communication