A scientist needs to cleave a protein at specific sites. Which method should they choose and why?

• A. Chemical cleavage, because it uses specific chemicals to target specific peptide bonds.
• B. Amino acid hydrolysis, because it targets specific peptide bonds.
• C. Peptidase cleavage, because it cleaves all peptide bonds non-specifically.
• D. Use both methods simultaneously for increased efficiency.

Answer: (A)