Concept:Inner speech, according to Lev Vygotsky, is the internal dialogue that develops from external speech and serves as a tool for thought organisation, reasoning, and self‑regulation.
Explanation:Vygotsky’s sociocultural theory holds that language first appears as social communication (external speech), then gradually becomes internalised. This internal form, called inner speech, is not a sign of immaturity; rather, it is a crucial cognitive tool. It helps children reason through problems, organise their thoughts, and plan actions independently. Inner speech also supports self‑regulation and the internalisation of social interactions. It typically emerges around age three, not at birth. Therefore, options B (hinders development), C (sign of immaturity), and D (occurs from birth to three) are incorrect. Only option A accurately describes its function.
Answer:Option A: helps in reasoning and organizing thoughts.