GWD17-Q21 请大家说说怎么回事9.4

21. GWD17-Q21:

Medicare, the United States government’s health
insurance program for the elderly and disabled, covers the full cost of home
health care, but not with other nonhospital services where 20 percent of the
costs must be paid by beneficiaries.

1. but not with other nonhospital services where 20 percent of the
        costs must be paid by beneficiaries
2. but not of other nonhospital services, making beneficiaries pay
        20 percent of the costs
3. but not of other nonhospital services, for which beneficiaries
        must pay 20 percent of the costs
4. which is unlike other nonhospital services in that 20 percent
        of the costs must be paid by beneficiaries
5. which is unlike other nonhospital services that make
        beneficiaries pay 20 percent of the costs

我也是觉得de从意思上说得过去些，可是的确which不能指代一句话

同问