Be careful here. Some corporate agreements (like mine!) preclude earning airmiles vs Avis points. I did not know this and had about two years' worth of Avis points go poof because I thought I was earning AA miles/LPs. Nope!

The fix would be for this option to disappear in these cases. Unsure how that could happen, but at least a warning to check with your company's travel manager would be nice.