Which of the Following Taxpayers May File as a Head

Multiple Choice

Which of the following taxpayers may file as a head of household in 2016?
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Ron provides all the support for his mother,Betty,who lives by herself in an apartment in Fort Lauderdale.Ron pays the rent and other expenses for the apartment and properly claims his mother as a dependent.
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Tammy provides over one-half the support for her 18-year old brother,Dan.Dan earned $4,200 in 2016 working at a fast food restaurant and is saving his money to attend college in 2017.Dan lives in Tammy's home.
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Joe's wife left him late in December of 2015.No legal action was taken and Joe has not heard from her in 2016.Joe supported his 6-year-old son,who lived with him throughout 2016.

A) Ron only
B) Tammy only
C) Joe only
D) Ron and Joe only
E) Ron,Tammy,and Joe