单选题 It is well-known that the retired workers in our country are ______ free medical care.
[A] entitled to [B] involved in [C] associated with [D] assigned to

【正确答案】 A

【答案解析】be entitled to被授予…的权利；be involved in参加．参与；be associated with与…有联系；be assigned to被分配给。句意：众所周知，我国的退休工人有权享受免费医疗。