In the context of 'Psychological Theories of Forgetting', which of the following statements is most appropriate and true regarding the quantitative nature of memory decay under Hermann Ebbinghaus's 'Forgetting Curve' and 'Law of Disuse', the psychological interrelationships of the active exclusion (Motivated Forgetting) of frustrated or painful experiences into the unconscious mind under Sigmund Freud's 'Repression Theory of Forgetting', and their implications for modern primary classroom teaching, a stress-free learning environment, and appropriate repetition strategies for enhancing memory in students?

Detailed Explanation

This question evaluates the psychological interrelationships between Hermann Ebbinghaus's 'Forgetting Curve' and Sigmund Freud's 'Repression Theory' within child development and pedagogy.

• Ebbinghaus's Forgetting Curve: Demonstrates that without practice, learned material is forgotten rapidly over time (passive decay), which necessitates 'Spaced Repetition' to counter memory loss.
• Freud's Repression Theory: Focuses on 'Motivated Forgetting' where individuals push anxiety-inducing or painful memories into the unconscious mind as a defense mechanism.
• Pedagogical Implication: Modern education integrates both concepts to advocate for scientific repetition methods alongside a stress-free, secure, and positive classroom environment to prevent emotional repression.

Therefore, Option B is scientifically and pedagogically accurate.