Krashen's theory is described as comprising how many hypotheses?

• A. Three
• B. Five
• C. Seven
• D. One

Answer: (B)

Krashen’s theory, often called the Monitor Model, is built around five hypotheses that together explain how language development happens. The first draws a distinction between acquisition, which is natural, unconscious learning from meaningful use, and learning, which is conscious knowledge of rules. The second says your language output is guided by a “monitor” that you use to correct form when you have time and focus on correctness. The third claims there is a natural order to language development: certain elements tend to appear in predictable sequences, and instruction can’t permanently shortcut that progression. The fourth emphasizes the Input Hypothesis: progress occurs when learners are exposed to language that is comprehensible and just a bit beyond their current level (often described as i+1). The fifth highlights the Affective Filter: emotions such as motivation, anxiety, and self-confidence influence how readily input is processed and absorbed.

Together, these five hypotheses form Krashen’s framework. That’s why five is the best answer.