Krashen's Monitor Hypothesis states that conscious grammar knowledge:

Answer choices

  1. A. Speeds up natural language acquisition
  2. B. Is the main driver of fluency
  3. C. Acts as an editor that monitors and corrects output ✓ Correct
  4. D. Is unnecessary for language development

Explanation

The Monitor (conscious learning) edits output — but over-using it makes speech slow and unnatural. Best used for writing.