One of the engineers on your team performs a presentation to a perspective client about a proposed design. In answering questions, the engineer reveals that she does not agree with the way in which this system is engineered during the presentation. What are your options as the project manager of the engineer, listening to the presentation

A．Immediately stop the engineer and do damage contro

B．Ask the engineer to explain the discrepancy and what recommendation she can offe

C．Communication an openness to the problem and lead a discussion to resolve the issue

D．Rephrase the problem to ensure that everyone understands the various major points, and solicit input from everyon

用现代汉语翻译下面的句子。     

寒暑易节，始一反焉。

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