A city council member states: 'We banned plastic straws last year, and now our beaches are noticeably cleaner. Clearly, banning plastic straws is the most effective solution for all environmental pollution.' What is the main weakness in this argument?

✓ Correct Answer: Option B

The council member makes a hasty generalization, taking a specific solution (banning straws) that had a positive outcome in one area (beach cleanliness) and broadly applying it as 'the most effective solution for all environmental pollution,' which is an oversimplification.