【单选题】
A Allows higher volumes of successful change 允许更多的成功变?
B Reduction in unplanned costs through optimized handling of service outages通过服务中断的优化处理减少意外成本
C Reduction in the duration and frequency of service outages 减少服务中断的持续时间和频率
D Enabling the service provider to have a clear understanding of what levels of service will make their customers successful 促进服务供应商充分理解什么级别的服务?平能使客户满意。
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