Here is a goal: how do I repair a rusty cast iron pan?

How would you accomplish this goal?

Options are:
[i] Remove all the rust: Use fine soft wool to remove rust from affected areas. ... Wash the skillet thoroughly: Wash the cast iron with warm water and mild dish soap. ... Dry the skillet: Thoroughly dry the cast iron immediately with a clean dish towel or paper towels..
[ii] Remove all the rust: Use fine steel wool to remove rust from affected areas. ... Wash the skillet thoroughly: Wash the cast iron with warm water and mild dish soap. ... Dry the skillet: Thoroughly dry the cast iron immediately with a clean dish towel or paper towels..
[ii]