No, no longer A-list.

A related question: when travelling for work, my employer would obligate me to buy the lowest fare. What option do I have if I buy a Basic fare? For example, is there a option to buy Basic, and then pay for a seat choice?

If yes, would that price be lower than just buying Choice? Or, is it possible to upgrade a Basic fare to Choice after purchasing? (I could do those upgrades on my own dime)