What does the Affective Filter Hypothesis describe as obstacles to L2 learning?

What does the Affective Filter Hypothesis describe as obstacles to L2 learning?

• A. Embarrassment, shyness, or negative attitudes about language learning act as barriers to learning.
• B. Strong motivation and curiosity always guarantee success.
• C. Explicit grammar instruction is unnecessary for all learners.
• D. Frequent exposure to the language eliminates all affective issues.

Answer: (A)