Which of the following is the primary material used in the manufacture of most standard trash bags, and what is its primary chemical property that makes it suitable for this application?
A) Polyethylene; it has a low density and is resistant to moisture.
B) Polypropylene; it is highly biodegradable and environmentally friendly.
C) Nylon; it has high tensile strength and flexibility.
D) Polyvinyl chloride (PVC); it has high chemical resistance and rigidity.