What is the safest way to handle a tight curve marked with an advisory speed sign of 25 mph?

1. Take the curve at the posted highway limit of 55 mph
2. Approach the curve at a speed at or below 25 mph, look through the curve, lean the bike with smooth counter-steering, and roll on the throttle at the apex
3. Brake hard while leaned over
4. Accelerate into the curve at full throttle