which of the following is/are correct regarding polymers used in pharmacy?

I- An important feature of polymers is glass transition temperature.

II- Collagen is a carbohydrate-based viscosity increasing polymer.

III-Chitosan is a natural polysaccharide polymer obtained from crab and shrimp shells.

IV- Polyglycolic acid (PGA) is used in the production of surgical threads that are absorbed in the body.

V- Polyurethane is a degradable polymer used in wound care, cancer applications, and treatments for sexually transmitted diseases.

(A) Ivev (B) I. Ill ve IV IL. Ivev All (E) lIve IV