Normal process of getting language through interaction?

• A. Output Theory
• B. Input Theory
• C. Inference Theory
• D. Interaction Hypothesis

Answer: (B)

The main idea here is that language is primarily acquired through exposure to language input that learners process and internalize. This Input Theory emphasizes that understanding meaningful language in context—especially when it’s just slightly beyond the learner’s current level—leads to gradual internalization of grammar, vocabulary, and patterns. Interaction can make input more understandable and salient, helping learners notice gaps and push their understanding, but the essential mechanism is taking in and processing that input rather than simply producing language or relying on casual negotiation of meaning. So, the best fit is that language development comes from engaging with comprehensible input that becomes part of the learner’s internal system.