Ellen is $62.$ She always filed a joint return with her husband, who died in $2018.$

$-$ Ellen has not remarried and she pays all the cost of keeping up her home. She earned $$28,500$ in wages for the current year

$-$ Ellen provides all the support for her two grandchildren who lived with her all year. Tricia is $12$ years old and Evan is $16$ years old

$-$ Ellen, Tricia, and Evan are all US citizens with valid Social Security numbers

What is Ellen's filing status?

Single

Head of Household

Qualifying Widower

Married Filing Jointly