Before driving a mountain route in winter, why should you check whether tire chains are required?

Pick an answer

1. It has no bearing on trip planning, since most mountain routes stay open all winter, which sounds right but isn't, at least for required
2. Some mountain routes legally require chains in winter conditions, and being unprepared can leave you unable to continue safely or legally
3. Chain requirements apply only to passenger vehicles, not commercial trucks
4. Chains are only ever a matter of driver preference, never a requirement

Correct!

Not quite. The correct answer is highlighted.