B.pleasure,which he defined as the absence of pain
It has been well documented, both in Heritage Foundation studies and in the scholarly literature of the past several years, that the Progressive Movement of the early 20th century had profound effects on American national government<span> The Progressives impatience with the Constitution, their antipathy for checks on government, and their longing to delegate power to administrative experts all have had a lasting impact on today’s politics, as Progressivism has gradually been carried forward in successive liberal waves throughout the 20th and now 21st centuries.</span>
Diary and artifact.
Primary Sources come from the original time or event. A diary represents a first-hand account of something by the original person. An artifact does virtually the same thing, being from that time period. All the other choices are incorrect because they are often told in a way that changes the original story or event.