Final answer:
The correct fix for torn windshield wiper blades is to replace them, as cleaning or resurfacing will not repair tears, and good wiper blades are essential for safe driving.
Step-by-step explanation:
When windshield wiper blades are torn, the correct fix is to replace the blades. Cleaning the blades would not fix tears, and resurfacing the blades' edges is not a standard or effective practice for repair. Wiper blades are crucial for maintaining visibility during inclement weather, and torn blades will not clear the windshield effectively, potentially compromising safety. Therefore, it's important to ensure that your wiper blades are always in good condition, and to replace them when they are damaged.