Each payday, some of your pay is withheld as a payroll deduction for social security. What happens to the money that is withheld?
A. it is redistributed as cash transfers to elderly and disabled people
B. it is redistributed as cash transfers to workers who are injured on the job
C. it is used to provide medical benefits to Americans over 65
D. it is put into an account under your name to earn interest until you retire.