Ribonucleosides require a relatively strong acid to be hydrolyzed. Why are uridine and guanosine not easily hydrolyzed? Why is their stability crucial for the survival of living organisms?

• A. Uridine and guanosine are not easily hydrolyzed because of the stability and weak basicity of their ribonucleoside site. Their stability is crucial for the survival of living organisms because it reduces DNA or RNA decomposition and prevents genetic damage.
• B. Uridine and guanosine are not easily hydrolyzed because of the stability and strong basicity of their nucleoside component. Their stability is crucial for the survival of living organisms because it aids DNA or RNA synthesis and prevents genetic damage.
• C. Uridine and guanosine are not easily hydrolyzed because of the stability and weak basicity of their protonation site. Their stability is crucial for the survival of living organisms because it reduces DNA or RNA decomposition and prevents genetic damage.
• D. Uridine and guanosine are not easily hydrolyzed because of the stability and weak basicity of their ribose component. Their stability is crucial for the survival of living organisms because it aids in DNA or RNA synthesis and prevents genetic damage.

Answer: (C)