What is the proper technique for crossing railroad tracks, potholes, or sharp obstacles on a motorcycle?

1. Approach as close to a 90-degree angle as possible, rise slightly off the seat on footpegs to absorb shock, and roll on throttle gently as you cross
2. Approach at a shallow parallel angle of 10 degrees while braking hard on the rails
3. Cross in neutral with your feet dragging on the ground
4. Accelerate to top speed while pulling the clutch lever in