Christopher died in 2013 and is survived by his wife, Chloe, and their 18-year-old son, Dylan. Chloe is the executor of Christopher's estate and maintains the household in which she and Dylan live. All of their support is furnished by Chloe. Dylan saves his earnings. Dylan reports the following information.

     Year __________ Earnings ______ Student?

2013 ..................$5,000 ...............Yes

2014 ................... 7,000 ...............No

2015 .................... 6,000 ...............Yes

What is Chloe's Federal income tax filing status for:

a. 2013?

b. 2014?

c. 2015?