How was the ku klux klan able to expand its membership

Explanation:

often focused on the history of white supremacy in the United States, and how much broader that history is in its impacts and geography than is often assumed. That aspect is highlighted in a new book about the Ku Klux Klan in the 1920s, The Second Coming of the KKK by two-time Bancroft Prize winner Linda Gordon, which puts modern anti-immigration and antisemitic rhetoric in context. In fact, though the KKK is best known for its racist attacks, other forms of hate have long been part of its history.

the correct answer is b

hope i someone

a memoir is the correct answer