Answer: Option C.
Because certain problems with proteins cause many diseases
Step-by-step explanation:
Protein folding is a physical process where by polypeptide chains of protein fold to get its native 3 dimensional structure which is important for proper functioning of proteins. When proteins do not fold properly it can result in contorted shapes which is good for the cells and it's environment. The improper folding of protein lead to formation of inactive and toxic proteins that can cause diseases.