In which regions of a Ramachandran plot can glycine adopt permissible bond angles, and what does this imply?

• A. Glycine's flexibility is similar to proline, with limited permissible regions.
• B. Glycine is restricted to the upper left quadrant, indicating low flexibility.
• C. Glycine can adopt angles in all quadrants, indicating high flexibility.
• D. Glycine can only adopt angles in the lower right quadrant, indicating instability.

Answer: (C)