Which of the following statements regarding growth companies and growth stocks is TRUE A growth:（）

A. company has management that has the ability to consistently select projects that earn higher returns than required by their risk.

B. company will not earn below normal returns.

C. company will earn above normal returns given its risk.

利用统计表进行整理数据和粗略分析原因的质量评价统计方法是（）

A.分层法

B.调查表法

C.排列图法

D.因果分析图

E.控制图