in may of year $1,$ donny left his wife juliette. while the couple was apart, they were not legally divorced. juliette found herself having to financially porvide for the couple's only child $(6$ years of age$)$ and to pay all of the costs of maintianing the household. when juliette filed her tax return for year $1,$ she filed a return separate from Donny. what is juliettes' most favorable filing stautus for year $1?$