Which appropriate teaching practice flows from this research finding on the brain: The brain's emotional center is tied into its ability to learn.

• A. Create a learning environment that encourages students to explore their feelings and ideas freely.
• B. Come up with highly competitive games where winners will feel happy.
• C. Tell students to participate in class activities or else won't receive plus points in class recitation.
• D. To establish discipline, be judgmental in attitude.