What are you required to do according to the following road sign?

1. Enter curve in high speed and exit it slowly.
2. Drive normally. The speed at the curve’s entry and exit is insignificant.
3. Correct answer: Reduce speed before entering the curve and gradually increase speed coming out of it.
4. Honk before entering the curve.

WhyBefore a sharp bend, slow down in advance and speed up gradually on the way out. Braking in the bend itself is dangerous.