When teaching a student about hydroplaning, what should a California driving instructor emphasize?

1. Hydroplaning only occurs at speeds over 70 mph
2. Hydroplaning can begin at speeds as low as 35 mph on wet roads; reduce speed, avoid sudden inputs, and maintain good tire tread
3. New tires increase the risk of hydroplaning
4. Hydroplaning is not a concern in California due to the dry climate