Whose Behaviour Best Exemplifies a "Blurred" Retirement Process

Whose behaviour best exemplifies a "blurred" retirement process?

A) Ben, who just permanently retired after working 40 straight years at a paper mill
B) Gregory, who has never had an out of the home career and whose work load is not changing significantly
C) Johnny, who is a retired accountant, but became a bookkeeper, and now wants to completely retire
D) Stella, who is unsure as to whether her full-time job as a lawyer is about to end, so she takes on more part-time work