Based on the premise "As long as there are still U.S. workers paying payroll taxes (and if there aren't, we'll have many far bigger problems), these can cover at least partial benefits.", can we conclude the hypothesis "As long as american workers pay taxes, benefits can be paid for." is true (see options)?

OPTIONS:
(a). yes.
(b). it is not possible to tell.
(c). no.
(a).