题目内容：
According to the passage, one advantage of having an advance care directive is __________.
A．the family will not have to petition the court to be appointed the parent's legal guardian B．the family don!:t have to worry about the issues concerning the care of elderly parents
C．the parents will not be suspicious of their children's financial motives
D．the parents will be free of the financial burden put on them by their children
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