. CHOOSE THE SENTENCE (A, B, C, OR D) WHICH IS CLOSEST IN MEANING TO...

6). Choose the sentence (A, B, C, or D) which is closest in meaning to the following:" Only customers with coupons may use the service."A). The service is available for coupons only.B). Only rich customers can use the service.C). The service is restricted to customers in possession of coupons.D). Only customers with coupons are serviced here.