人事管理一方面具有自然属性，另一方面还具有社会属性。自然属性源于它的（），社会属性源于它的政治性和阶级性。

Which of the following is the most appropriate title for the passage

(A) A Political Birthright: An Analysis of Revolutionary Psychology
(B) The American Revolution, Its Causes and Effects
(C) The Legacy of Progressive Historians: A Critical Perspective
(D) Reaction or Revolution: A Re-Examination of the American Rebels’ Motives
(E) Democracy In Action: The Legacy of the American Revolution