${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}is(are)an\text{e}\text{x}\text{a}\text{m}\text{p}\text{l}\text{e}ofanin-\text{k}\text{i}\text{n}\text{d}\text{p}\text{a}\text{y}\text{m}\text{e}\text{n}\text{t}\text{m}\text{a}\text{d}\text{e}by\text{t}\text{h}\text{e}\text{g}\text{o}\text{v}\text{e}\text{r}\text{n}\text{m}\text{e}\text{n}\text{t}of\text{t}\text{h}\text{e}\text{U}\text{n}\text{i}\text{t}\text{e}\text{d}\text{S}\text{t}\text{a}\text{t}\text{e}\text{s}\text{.}}$

$a.$ Social Security payments

$b.$ Unemployment compensation

$c.$ Food stamps

$d.$ Temporary Assistance for Needy Families