Concept:LAC stands for Language Across the Curriculum. It is an approach that integrates language learning with all subjects, not just language classes. Explanation:Language Across the Curriculum highlights that language is essential for learning in every subject. It connects language and thinking. This approach helps students use their language skills to understand and discuss content in all subjects. It goes beyond communication. Language supports mental activities like conceptualising and reasoning. It also helps students express thoughts clearly. The goal is to improve both language and subject knowledge together. Answer:C. Language Across the Curriculum