How do the Ramachandran plots of glycine and proline differ in terms of permissible regions?

• A. Proline has more permissible regions than glycine.
• B. Glycine has permissible regions in all quadrants, while proline is restricted to mainly one quadrant.
• C. Glycine and proline have identical permissible regions.
• D. Both glycine and proline have permissible regions in all quadrants.

Answer: (B)