What is the statutory fine and administrative categorization for driving while using a handheld mobile phone without a hands-free device under the Swiss Ordnungsbussenverordnung (OBV)?

1. An on-the-spot fixed fine (Ordnungsbusse) of CHF 100
2. Immediate prison sentence of 30 days
3. A verbal warning with no monetary fine
4. Suspension of the vehicle registration for 6 months