[单选题]
3. Which is the most 8:ypkz hj (la.- r3vhuaccurate description of, “de f t)db5 6lvofj+gum */f/xs9tnaturation”?
A. The effect of temperature on proteins.
B. The change in properties of peptides.
C. The change in structure of a peptide.
D. The effect of pH on protein structure.
