Step 1: Concept
Elastomers are polymers with elastic properties, meaning they can return to their original shape after being stretched.
Step 2: Meaning
They have weak intermolecular forces and often contain cross-links that allow them to "spring" back.
Step 3: Analysis
PVC is a thermoplastic. Bakelite is a thermosetting plastic. Teflon is a high-performance plastic. Neoprene is a type of synthetic rubber, which is an elastomer.
Step 4: Conclusion
Neoprene is the correct example of an elastomer among the choices.
Final Answer: (A)