Concept:Vygotsky’s sociocultural theory sees language as a cognitive tool that drives thinking forward.Explanation:Language is not just for talking with others. It also helps children plan, solve problems, and organize ideas. By using language, children can internalize concepts and control their own thinking. This process boosts higher-order mental skills. So, language actively advances, not hinders, a child’s thinking.Answer:Option C – helps children in advancing their thinking.