Paul, CFA, heads the research department of a large brokerage firm. Paul has supervisory responsibility over 25 analysts. If Paul delegates some supervisory duties, which statement best describes his responsibilities based on the Standards of Professional Conduct（）

A. Paul is not responsible for those duties he has delegated to his subordinates.

B. Paul’s supervisory responsibilities only apply to analysts with the CFA designation.

C. Paul retains supervisory responsibility for all subordinates despite his delegation of some duties.

在弹簧测力计下挂一圆柱体，从如图示甲位置缓慢下降（容器足够深且没有水溢出）。图乙所示是圆柱体下降过程中弹簧测力计读数F随圆柱体下降高度h变化图像。求：

（1）圆柱体全部浸没在水中时，受到的浮力是多少N?

（2）分析图像BC段，可得结论：物体浸没液体之前，浸入液体的深度越深，受到的浮力如何变化？

（3）圆柱体的体积为多少m³?（g=10N/kg）

（4）物体在图像中E点深度与D点深度所受浮力哪个大？写出判断的理由。