Which of the following plastic is commonly used for window frames, gutters and drain pipes?

Polyvinylchloride (PVC) is commonly used for window frames, gutters, and drain pipes due to its unique properties and advantages. PVC is highly durable and has excellent resistance to harsh weather conditions, making it ideal for outdoor applications. Its strength and rigidity allow it to withstand heavy loads and pressure, ensuring long-term structural integrity. PVC is also lightweight and easy to handle, making it convenient for installation. Furthermore, PVC is cost-effective, as it is relatively inexpensive compared to other materials while still providing reliable performance and longevity. It is also resistant to corrosion, chemicals, and fire, making it a suitable choice for drainage systems. Overall, the versatility, durability, cost-effectiveness, and resistance to weather and chemicals make PVC an excellent choice for window frames, gutters, and drain pipes.