In each of the following independent situations, determine Winston’s filing status. Winston is not married.
a. Winston lives alone, but he maintains a household in which his parents live. The mother qualifies as Winston’s dependent, but the father does not.
b. Winston lives alone, but he maintains a household in which his married daughter, Karin, lives. Both Karin and her husband (Winston’s son in law) qualify as Winston’s dependents.
c. Winston maintains a household in which he and a family friend, Ward, live. Ward qualifies as Winston’s dependent.
d. Winston maintains a household in which he and his mother in law live. Winston’s wife died last year.
e. Same as (d), except that Winston’s wife disappeared (i.e., she did not die) two years ago.