Which pre-ride check best supports safe visibility and communication?

1. Confirm the headlight, brake light, turn signals, and horn work
2. Check the colour and reflectivity of your jacket but leave all electrical equipment for scheduled servicing
3. Rev the engine and sound the horn because other road users can hear these even if the signal lamps fail
4. Skip the light and signal check during daylight because good weather guarantees that other drivers can see you