单选] 控制图有助于项目经理:A control chart helps the project manager:

A、着眼于改进质量最重要的问题上Focus on the most critical issues to improve quality.
B、着眼于刺激思考Focus on stimulating thinking.
C、探索理想的结果Explore a desired future outcome.
D、确定某流程是否正常运转Determine if a process is functioning within set limits.