单选题 The prime minister tried to act but her plans were ______ by her cabinet.
【正确答案】 A
【答案解析】(frustrate使失败)。句意为：首相试图采取行动，但内阁成员挫败了她的计划。B．discuss讨论；C．embellish装饰；D．overlook俯瞰。