Step 1: Understanding the Concept:
Food packaging materials must provide barrier properties, mechanical strength, and chemical inertness.
Thermoplastic polymers are widely synthesized to meet these packaging requirements.
Step 2: Detailed Explanation:
Polyvinyl Chloride (PVC) is a synthetic thermoplastic polymer produced by the polymerization of vinyl chloride monomer.
It is widely used in food packaging, particularly as stretch-cling wraps for fresh meat, rigid trays, and bottles.
On the other hand:
- Polysaccharides and oligosaccharides are carbohydrates.
- Polyols are sugar alcohols.
These do not belong to the class of synthetic plastics used in standard plastic packaging.
Step 3: Final Answer:
The plastic packaging material is Polyvinyl Chloride, which corresponds to option (D).